For the reactions: kJ kJ The decreasing order of enthalpy of is:

CHEMISTRY · Single correct · A Level · Chemistry · Energetics · Energetics

Problem

For the reactions:

A \to B; \Delta H = +24

mol^{-1}

B \to C; \Delta H = -18

mol^{-1}

The decreasing order of enthalpy of

A, B, C

is: (1)

A > B > C

(2)

B > C > A

(3)

C > B > A

(4)

C > A > B