Teaching Haryana (HPSC) PGT Mock Test 2024 Chemistry Thermodynamics First Law Of Thermodynamics And Hess law
If ΔfU⊖ of formation of CH4g at certain temperature is -393 KJ mol-1. The value of ΔfH⊖ is
1
Zero
2
< ΔfH⊖
3
> ΔfH⊖
4
equal to ΔfH⊖
5
Question Not Attempted