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A positive change in enthalpy occurs in:...

A positive change in enthalpy occurs in:

A

`H_2(g)+1/2O_2(g)rarrH_2O(g)`

B

`N_2(g)+3H_2(g)rarr2NH_3(g)`

C

`MgCO_3(s)rarrMgO(s)+CO_2(g)`

D

`H_2(g)+1/2O_2(g)rarrH_2O(l)`

Text Solution

Verified by Experts

The correct Answer is:
C
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