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Question: At 25ŗC and 1 atm which of the following has non zero enthalpy of formation...

At 25ŗC and 1 atm which of the following has non zero enthalpy of formation

A

Br2 (l)

B

C (graphite)

C

I2 (s)

D

O3 (g)

Answer

O3 (g)

Explanation

Solution

O3 (g) is the allotropic form of oxygen and energy of O3 (g) is higher.