Question

Heat formation at constant pressure, ΔH of HCl(g) is –90 kJ mol-1. If 2 moles of each H2(g) and Cl2(g) react, then ΔU will be?
-180kJ
-360kJ
+180kJ
+360kJ

Answer 1

Answer:

kj is first is and

bk dvk asd uo

Answer 2

Answer:

b) -360kJ

Explanation:

∆H=∆u+∆ngRT

-360=∆u+0

∆u= -360kJ