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5 mole of an ideal gas expands reversibly from a volume of 8dm3to 80dm3 at a temperature of 27 degree Celsius calculate the change in the entropy 

Asked by Sherbalatha2015 18th May 2016, 8:32 AM
Answered by Expert
Answer:

begin mathsize 11px style Given colon straight V subscript 1 space equals space 8 space cm cubed comma space straight V subscript 2 space equals space 80 space dm cubed straight n space equals space 5 straight T space equals space 27 space plus space 273 space equals space 300 space straight K increment space straight S subscript straight T space equals space 2.303 space nR space log space straight V subscript 2 over straight V subscript 1 Let space us space now space substitute space the space given space values space in space the space formula comma space we space get comma increment space straight S subscript straight T space equals 2.303 space cross times space 5 space cross times space 8.314 space cross times space log space 80 over 8 space space space space space space space space space space equals 95.74 space JK to the power of negative 1 end exponent  increment space straight G space equals space 2.303 space nR space straight T space log space straight V subscript 1 over straight V subscript 2 Let space us space now space substitute space the space given space values space in space the space formula comma space we space get comma increment space straight G space equals 2.303 space cross times space 5 space cross times space 8.314 space cross times space log space 80 over 8 space cross times space 300 space space space space space space space space equals space minus space 28720 space straight J end style

Answered by Expert 6th June 2016, 6:20 PM
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