calculate the entropy change and reversible heat of the system is 250 KJ at 27°C .
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Isothermal reversible expansion of 2 moles of an ideal gas from a valence of 10dm3 at 270C is to a volume of 100dm3. The entropy change involved in the above process be ΔS.
ΔS=nR lnV1V2
=(2.303)(2)(8.314)log(10100)
=38.3J mol−1 K−1
thus, entropy change of reaction is 38.3J mol−1 K−1.
Hence, the correct option is B
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