Question

For the given reactions, A forming D; ∆H=x. Steps involved are
A forming B ; ∆ H1 = x1
B forming C ; ∆H2 = ?
C forming D ; ∆H3 = x3 .Then ∆H2 =

Answer 1

Explanation:

here is the answer... eq 2+3-1 and reverse the eq C-> B to B->C and change the sign of the enthalpy

Answer 2

Answer:

x-[x1 + x3]

Explanation:

H1 + H2 + H3 = H

x1 + H2 + x3 = x

H2 = x-[x1 + x3]