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Chemistry
Chemistry
Problem
Molar heat capacity of
CD
2
O
\text{CD}_2\text{O}
CD
2
O
(deuterated form of formaldehyde) at constant pressure is
14
cal mol
−
1
K
−
1
14 \text{ cal mol}^{-1} \text{ K}^{-1}
14
cal mol
−
1
K
−
1
at 1000 K. Calculate the entropy change associated with cooling of 3.2 g of
CD
2
O
\text{CD}_2\text{O}
CD
2
O
vapour from 1000 to 900 K.
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