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For a perfectly crystalline solid C(p.m)...

For a perfectly crystalline solid `C_(p.m) = aT^(3)`, where a is constant. If `C_(p.m)` is 0.42 J/K `-` mol at 10K, molar entropy at 10K is

A

0.42 J/K-mol

B

0.14 J/K-mol

C

4.2 J/K-mol

D

zero

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • For a perfectly cyrstalline solid C_(p,m) a T^(3) + bT , where a and b are constants. If C_(p, m) is 0.40J/K mol at 10K and 0.92J/K mol at 20K, then molar entropy at 20K is:

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