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Principle of Calorimetry

10 moles of a...

Question

10 moles of an ideal gas expands adiabatically reversibly from 5 $d m^{3}$ to 10 $d m^{3}$ at 300 K. Find the entropy change.

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Solution

Do you think it is a tricky question?
Just recall $Q_{r e v}$
Here, $Q_{r e v}$ = 0 [Because it is an adiabatic process]
Therefore, $Δ S = \frac{Q_{r e v}}{T}$
= 0

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