A) \[Ca(s)+\frac{1}{2}{{O}_{2}}(g)\to CaO(s)\]
B) \[CaC{{O}_{3}}(s)\to CaO(s)+C{{O}_{2}}(g)\]
C) \[C(s)+{{O}_{2}}(g)\to C{{O}_{2}}(g)\]
D) \[{{N}_{2}}(g)+{{O}_{2}}(g)\to 2NO(g)\]
Correct Answer: B
Solution :
Solid \[\xrightarrow{{}}\] Gas, \[\Delta S\] is maximum.
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