1.

3 moles of CO_(2) gas expands isothermally against external pressure of 1 bar. Volume increases from 10 L to 30 L respectively. The system is in thermal contact of surroundings at temperature 15^(@)C. Entropy change in isotehrmal process is: DeltaS=2.303nR" log "((V_(2))/(V_(1))). Q. If CO_(2) behaves like an ideal gas, then entropy change of system (DeltaS_("system")) will be:

Answer»

`+27.4JK^(-1)`
`9.1JK^(-1)`
`-27.4JK^(-1)`
`-9.1JK^(-1)`

ANSWER :A


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