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The molar heat capacity (C(P)) of CD(2)O...

The molar heat capacity `(C_(P))` of `CD_(2)O` is 10 cals at 1000 K. The change in entropy associated with cooling of 32 g of `CD_(2)O` vapour form 1000 K to 100 K at constant pressure will be : (D= deuterium, at mass =2u)

A

`23.03" cal deg"^(-1)`

B

`-23.03" cal deg"^(-1)`

C

`2.303" cal deg"^(-1)`

D

`-2.303" cal deg"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaS=2.303 nC_(p)"log" T_(2)/T_(1)`
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