1.

JAY All of theseThe following reactions carried in open vessel. The reaction for which ΔH = ΔU will be(1) PC,(g)PCL,(g)+ CL(g)(3) N(g)+ 3H2(9) 2NH,(g)(2) 2CO(g) +g)2C02(g)

Answer»

∆H=∆U only when ∆n(g)=0 i.e. difference between the gas molecules in products and reactants is 0.

Hence, option (4) is correct.

thanks uh so much❤️



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