An exothermic reaction X → Y has an activation energy 30 kJ mol^-1. If energy change $\Delta E$ during the reaction is -20 kJ, then the activation energy for the reverse reaction in kJ is-----------. (Integer answer)

<p>X →<strong> </strong>Y</p><p><math><mtable columnalign="left"><mtr><mtd><mrow><msub><mrow><mi>E</mi></mrow><mrow><msub><mrow><mi>a</mi></mrow><mrow><mi>f</mi></mrow></msub></mrow></msub><mo>−</mo><msub><mrow><mi>E</mi></mrow><mrow><msub><mrow><mi>a</mi></mrow><mrow><mi>b</mi></mrow></msub></mrow></msub><mo>=</mo><mo>−</mo><mn>2</mn><mn>0</mn></mrow></mtd></mtr><mtr><mtd><mrow><mn>3</mn><mn>0</mn><mo>−</mo><msub><mrow><mi>E</mi></mrow><mrow><msub><mrow><mi>a</mi></mrow><mrow><mi>b</mi></mrow></msub></mrow></msub><mo>=</mo><mo>−</mo><mn>2</mn><mn>0</mn></mrow></mtd></mtr></mtable></math></p><p><math><mrow><msub><mrow><mi>E</mi></mrow><mrow><msub><mrow><mi>a</mi></mrow><mrow><mi>b</mi></mrow></msub></mrow></msub><mo>=</mo><mn>5</mn><mn>0</mn><mi>k</mi><mi>J</mi><mo>/</mo><mi>m</mi><mi>o</mi><mi>l</mi><mi>e</mi></mrow></math></p>

0 Upvotes 0 Upvotes 0 Downvotes

• • Report Abuse
• Comment