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

The difference between heat of reactions at constant pressure and constant volume for the reaction C6H6(l)+152O2(g)6CO2(g)+3H2O(l) at 25C in kJ is

A
-7.43
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
3.72
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
-3.72
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
7.43
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C -3.72
We have the relation for a reaction
HU=ngRT
2C6H6(l)+15O2(g)12CO2(g)+6H2O(l) at 25C
here Δng=6152=1.5
Putting the values in the formula we get,
HU=(1.5)×8.3141000×298HU=3.716 kJmol1

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon