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Entropy

What is entro...

Question

What is entropy of vaporization of water at 100°C ,if molar heat of vaporization is 9710 call/mol

1)20cal/K/mol

2)26 call /K/mol

3)24 call/K/mol

4)28cal/ K/ mol

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Solution

2)26 cal/k/mol

T=373k
∆S=?
q=9710.

∆S =q/t
=9710/373
=26

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