For the combustion of C3H8(g) at constant temperature ΔH−ΔU is:
The difference in the heat of reaction at constant volume and at constant pressure for the given reaction is:
CH4(g)+O2(g)Mn2+−−−→HCOOH(l)+H2(g)
For the reaction, N2 + 3H2 ⇌ 2NH3, ∆H= …………….
∆U° of combustion of CH4 (g)at certain temperature is -393kj/ mol.Then value of ∆H° is
1)0
2)<∆U°
3)>∆U°
4)=∆U°