CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

For a reaction at 25C enthalpy change (H) and entropy change (S) are 11.7×103Jmol1 and 105Jmol1K1 respectively. Find out whether this reaction is spontaneous or not?


  1. Spontaneous

  2. Non-spontaneous


Solution

The correct option is B

Non-spontaneous


For checking spontaneity, we need to check the value of G.
If G = -ve spontaneous
G = +ve Non-spontaneous
Given, H = 11.7×103Jmol1
       S = 105Jmol1K1
T = 298 K
G = H - TS = 11700298×(105) = 19590 J = + 19.59 kJ
Since G = +ve
reaction is not spontaneous.

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image