Nuclear Energy: Science, Systems and Society

<div class="xblock xblock-public_view xblock-public_view-vertical" data-init="VerticalStudentView" data-runtime-version="1" data-graded="True" data-has-score="False" data-usage-id="block-v1:MITx+22.011x+3T2018+type@vertical+block@612616597c9d4028b14107ea80faa2a6" data-runtime-class="LmsRuntime" data-request-token="c1cd538655da11ecbee71652d7ed4529" data-block-type="vertical" data-course-id="course-v1:MITx+22.011x+3T2018"> <h2 class="hd hd-2 unit-title">2.1.8. Required Assessment</h2> <div class="vert-mod"> <div class="vert vert-0" data-id="block-v1:MITx+22.011x+3T2018+type@html+block@a6f0b0996a5f405bb9feaee857964425"> <div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-init="XBlockToXModuleShim" data-runtime-version="1" data-graded="True" data-has-score="False" data-usage-id="block-v1:MITx+22.011x+3T2018+type@html+block@a6f0b0996a5f405bb9feaee857964425" data-runtime-class="LmsRuntime" data-request-token="c1cd538655da11ecbee71652d7ed4529" data-block-type="html" data-course-id="course-v1:MITx+22.011x+3T2018"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p>Please answer the following questions (this assessment is not graded):</p> <ul> <li>Estimate the amount of U-235 required to power the largest city in your country for one day.</li> <li>How is \(CO_2\) produced in power plants?</li> <li>Why do nuclear power plants not generate \(CO_2\)?</li> </ul> </div> </div> <div class="vert vert-1" data-id="block-v1:MITx+22.011x+3T2018+type@problem+block@8828497587b5435682eca403d5dada7f"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-init="XBlockToXModuleShim" data-runtime-version="1" data-graded="True" data-has-score="True" data-usage-id="block-v1:MITx+22.011x+3T2018+type@problem+block@8828497587b5435682eca403d5dada7f" data-runtime-class="LmsRuntime" data-request-token="c1cd538655da11ecbee71652d7ed4529" data-block-type="problem" data-course-id="course-v1:MITx+22.011x+3T2018"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Problem"} </script> <div id="problem_8828497587b5435682eca403d5dada7f" class="problems-wrapper" role="group" aria-labelledby="8828497587b5435682eca403d5dada7f-problem-title" data-problem-id="block-v1:MITx+22.011x+3T2018+type@problem+block@8828497587b5435682eca403d5dada7f" data-url="/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@problem+block@8828497587b5435682eca403d5dada7f/handler/xmodule_handler" data-problem-score="0.0" data-problem-total-possible="1.0" data-attempts-used="0" data-content=" <h3 class="hd hd-3 problem-header" id="8828497587b5435682eca403d5dada7f-problem-title" aria-describedby="block-v1:MITx+22.011x+3T2018+type@problem+block@8828497587b5435682eca403d5dada7f-problem-progress" tabindex="-1"> Assessment 2 </h3> <div class="problem-progress" id="block-v1:MITx+22.011x+3T2018+type@problem+block@8828497587b5435682eca403d5dada7f-problem-progress"></div> <div class="problem"> <div> <p>If a new hydrocarbon fuel (\(C_xH_y\)) was discovered, could it be used in a power plant without emitting \(CO_2\)? To answer this question, write and balance the combustion reaction for this hypotetical fuel (e.g. determine \(n\), \(a\), \(b\), \(Product_1\) and \(Product_2\)).</p> <p>\(C_xH_y + n\times O_2 = a\times Product_1 + b\times Product_2 + Energy\)</p> <p>In the equation above, the \(n\) represents...</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div class="choicegroup capa_inputtype" id="inputtype_8828497587b5435682eca403d5dada7f_2_1"> <fieldset aria-describedby="status_8828497587b5435682eca403d5dada7f_2_1"> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_2_1" id="input_8828497587b5435682eca403d5dada7f_2_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="8828497587b5435682eca403d5dada7f_2_1-choice_0-label" for="input_8828497587b5435682eca403d5dada7f_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_2_1"> \(x+y\) </label> </div> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_2_1" id="input_8828497587b5435682eca403d5dada7f_2_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="8828497587b5435682eca403d5dada7f_2_1-choice_1-label" for="input_8828497587b5435682eca403d5dada7f_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_2_1"> \((x+y/4)\) </label> </div> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_2_1" id="input_8828497587b5435682eca403d5dada7f_2_1_choice_2" class="field-input input-radio" value="choice_2"/><label id="8828497587b5435682eca403d5dada7f_2_1-choice_2-label" for="input_8828497587b5435682eca403d5dada7f_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_2_1"> \((1/6)\) </label> </div> <span id="answer_8828497587b5435682eca403d5dada7f_2_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_8828497587b5435682eca403d5dada7f_2_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>In the equation above, \(Product_1\) represents...</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 2" role="group"><div class="choicegroup capa_inputtype" id="inputtype_8828497587b5435682eca403d5dada7f_3_1"> <fieldset aria-describedby="status_8828497587b5435682eca403d5dada7f_3_1"> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_3_1" id="input_8828497587b5435682eca403d5dada7f_3_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="8828497587b5435682eca403d5dada7f_3_1-choice_0-label" for="input_8828497587b5435682eca403d5dada7f_3_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_3_1"> \(\text{CH}_4\) </label> </div> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_3_1" id="input_8828497587b5435682eca403d5dada7f_3_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="8828497587b5435682eca403d5dada7f_3_1-choice_1-label" for="input_8828497587b5435682eca403d5dada7f_3_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_3_1"> \(\text{H}_2\text{O}\) </label> </div> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_3_1" id="input_8828497587b5435682eca403d5dada7f_3_1_choice_2" class="field-input input-radio" value="choice_2"/><label id="8828497587b5435682eca403d5dada7f_3_1-choice_2-label" for="input_8828497587b5435682eca403d5dada7f_3_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_3_1"> \(\text{CO}_2\) </label> </div> <span id="answer_8828497587b5435682eca403d5dada7f_3_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_8828497587b5435682eca403d5dada7f_3_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>In the equation above, \(Product_2\) represents...</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 3" role="group"><div class="choicegroup capa_inputtype" id="inputtype_8828497587b5435682eca403d5dada7f_4_1"> <fieldset aria-describedby="status_8828497587b5435682eca403d5dada7f_4_1"> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_4_1" id="input_8828497587b5435682eca403d5dada7f_4_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="8828497587b5435682eca403d5dada7f_4_1-choice_0-label" for="input_8828497587b5435682eca403d5dada7f_4_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_4_1"> \(\text{CO}_2\) </label> </div> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_4_1" id="input_8828497587b5435682eca403d5dada7f_4_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="8828497587b5435682eca403d5dada7f_4_1-choice_1-label" for="input_8828497587b5435682eca403d5dada7f_4_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_4_1"> \(\text{H}_2\text{O}\) </label> </div> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_4_1" id="input_8828497587b5435682eca403d5dada7f_4_1_choice_2" class="field-input input-radio" value="choice_2"/><label id="8828497587b5435682eca403d5dada7f_4_1-choice_2-label" for="input_8828497587b5435682eca403d5dada7f_4_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_4_1"> \(\text{H}_2\text{S}\) </label> </div> <span id="answer_8828497587b5435682eca403d5dada7f_4_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_8828497587b5435682eca403d5dada7f_4_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>In the equation above, \(a\) represents...</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 4" role="group"><div class="choicegroup capa_inputtype" id="inputtype_8828497587b5435682eca403d5dada7f_5_1"> <fieldset aria-describedby="status_8828497587b5435682eca403d5dada7f_5_1"> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_5_1" id="input_8828497587b5435682eca403d5dada7f_5_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="8828497587b5435682eca403d5dada7f_5_1-choice_0-label" for="input_8828497587b5435682eca403d5dada7f_5_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_5_1"> \(x\) </label> </div> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_5_1" id="input_8828497587b5435682eca403d5dada7f_5_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="8828497587b5435682eca403d5dada7f_5_1-choice_1-label" for="input_8828497587b5435682eca403d5dada7f_5_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_5_1"> \(y\) </label> </div> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_5_1" id="input_8828497587b5435682eca403d5dada7f_5_1_choice_2" class="field-input input-radio" value="choice_2"/><label id="8828497587b5435682eca403d5dada7f_5_1-choice_2-label" for="input_8828497587b5435682eca403d5dada7f_5_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_5_1"> \(c\) </label> </div> <span id="answer_8828497587b5435682eca403d5dada7f_5_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_8828497587b5435682eca403d5dada7f_5_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>In the equation above, \(b\) represents...</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 5" role="group"><div class="choicegroup capa_inputtype" id="inputtype_8828497587b5435682eca403d5dada7f_6_1"> <fieldset aria-describedby="status_8828497587b5435682eca403d5dada7f_6_1"> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_6_1" id="input_8828497587b5435682eca403d5dada7f_6_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="8828497587b5435682eca403d5dada7f_6_1-choice_0-label" for="input_8828497587b5435682eca403d5dada7f_6_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_6_1"> \(x/4\) </label> </div> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_6_1" id="input_8828497587b5435682eca403d5dada7f_6_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="8828497587b5435682eca403d5dada7f_6_1-choice_1-label" for="input_8828497587b5435682eca403d5dada7f_6_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_6_1"> \(y/2\) </label> </div> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_6_1" id="input_8828497587b5435682eca403d5dada7f_6_1_choice_2" class="field-input input-radio" value="choice_2"/><label id="8828497587b5435682eca403d5dada7f_6_1-choice_2-label" for="input_8828497587b5435682eca403d5dada7f_6_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_6_1"> \(c/2\) </label> </div> <span id="answer_8828497587b5435682eca403d5dada7f_6_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_8828497587b5435682eca403d5dada7f_6_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>Could this fuel be used without creating \(CO_2\)?</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 6" role="group"><div class="choicegroup capa_inputtype" id="inputtype_8828497587b5435682eca403d5dada7f_7_1"> <fieldset aria-describedby="status_8828497587b5435682eca403d5dada7f_7_1"> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_7_1" id="input_8828497587b5435682eca403d5dada7f_7_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="8828497587b5435682eca403d5dada7f_7_1-choice_0-label" for="input_8828497587b5435682eca403d5dada7f_7_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_7_1"> yes </label> </div> <div class="field"> <input type="radio" name="input_8828497587b5435682eca403d5dada7f_7_1" id="input_8828497587b5435682eca403d5dada7f_7_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="8828497587b5435682eca403d5dada7f_7_1-choice_1-label" for="input_8828497587b5435682eca403d5dada7f_7_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_8828497587b5435682eca403d5dada7f_7_1"> no </label> </div> <span id="answer_8828497587b5435682eca403d5dada7f_7_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_8828497587b5435682eca403d5dada7f_7_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> 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These options follow the Submit button.</span> </div> </div> <div class="problem-action-buttons-wrapper"> <span class="problem-action-button-wrapper"> <button type="button" class="save problem-action-btn btn-default btn-small" data-value="Save"> <span class="icon fa fa-floppy-o" aria-hidden="true"></span> <span aria-hidden="true">Save</span> <span class="sr">Save your answer</span> </button> </span> </div> </div> <div class="notification warning notification-gentle-alert is-hidden" tabindex="-1"> <span class="icon fa fa-exclamation-circle" aria-hidden="true"></span> <span class="notification-message" aria-describedby="8828497587b5435682eca403d5dada7f-problem-title"> </span> <div class="notification-btn-wrapper"> <button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button> </div> </div> <div class="notification warning notification-save is-hidden" tabindex="-1"> <span class="icon fa fa-save" aria-hidden="true"></span> <span class="notification-message" aria-describedby="8828497587b5435682eca403d5dada7f-problem-title">None </span> <div class="notification-btn-wrapper"> <button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button> </div> </div> <div class="notification general notification-show-answer is-hidden" tabindex="-1"> <span class="icon fa fa-info-circle" aria-hidden="true"></span> <span class="notification-message" aria-describedby="8828497587b5435682eca403d5dada7f-problem-title">Answers are displayed within the problem </span> <div class="notification-btn-wrapper"> <button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button> </div> </div> </div> " data-graded="True"> <p class="loading-spinner"> <i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i> <span class="sr">Loading…</span> </p> </div> </div> </div> </div> </div>