The exothcrmic reaction, 2 Cu(s) + 0_2(g) rightarrow 2 CuO(s), is spontaneous At

Question

The exothcrmic reaction, 2 Cu(s) + 0_2(g) rightarrow 2 CuO(s), is spontaneous At high temperatures At low temperatures At all temperatures The reaction is nonspontancous at all temperatures For the reaction, X + Y rightarrow A + B, deltaGdegree is -1324 kJ. Which one of the following statements is valid concerning the reaction? The reaction is thermodynamically favorable. the reaction is spontaneous as written. The products are more stable than the rcactants. the reaction will proceed rapidly from left to right.

Explanation / Answer

2 Cu(s) + O2 (g) ------> 2 CuO (s)

it is a exothermic reaction indicating there is releasing of energy. If you increase the temperature then the enrgy of products will be high and the reaction becomes reversible hence low temperature is favourable.

Ans : B

X + Y ------> A + B , dG = -1324 KJ

the above reaction is also exothermic reaction and spontaneous and favourable at low temperatures. The reaction is not kinetically favourable.

Ans : A

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