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

The standard entropies of CO2(g), C(s) and O2(g) are 213.50, 5.74 and 205 J/K respectively. What will be the standard entropy of formation of CO2:

A
2.76 J/K
No worries! Weā€˜ve got your back. Try BYJUā€˜S free classes today!
B
5.76 J/K
No worries! Weā€˜ve got your back. Try BYJUā€˜S free classes today!
C
2.76 J/K
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
5.76 J/K
No worries! Weā€˜ve got your back. Try BYJUā€˜S free classes today!
Open in App
Solution

The correct option is C 2.76 J/K
The reaction taking place is
C(s)+O2(g)CO2(g)

We know,
ΔS=SproductsSreactants

here in this case of formation of CO2,
putting the values,
ΔS=[213.50][5.74+205]
=2.76 J/K

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Second Law of Thermodynamics
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon