Question

Look at the following diagram :

The enthalpy change for the reaction A $\rightarrow$ B will be

• A. – 25 Kj
• B. – 40 kJ
• C.
  • 25 kJ
• D. – 65 kJ

Answer 1

Answer: (A)

– 25 Kj

Answer 2

$\Delta$H = Hp – HR = 15 – 40 = – 25 kJ.