Question

The change in enthalpy for the reaction A + P is x kJ/mol. What does the enthalpy
change for the reaction P → A?
(A) - x kJ/mol
(B) + 3 kJ/mol
(C) 0 kJ/mol
(D) – 2x kJ/mol​

Answer 1

Answer:

- xkj/mol

Explanation:

that means the enthalpy change of the overall reaction is the sum of the enthalpy changes of the intermediate reaction. for reverse reaction, the enthalpy would remain same but the sign of enthalpy would change