wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

For AB,ΔH=4kcalmol1,ΔS=10calmol1k1 is spontaneous when temperature can be:

A
400K
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
300K
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
500K
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
200K
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 500K
Given ΔH=4kcalmol1=4000calmol1
ΔS=10calmol1k1,ΔG=0
at equilibrium
ΔG=ΔHTΔS
or
0=4000T × 10or10T=4000
T=400010=400K
At temperature above 400K the reaction is spontaneous.
500K is the only choice above 400K

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Gibbs Free Energy
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon