`1` mole of an ideal gas at `25^(@)` C is subjected to expand reversibly and adiabatically to ten times of its initial volume. Calculate the change in entropy during expansion (in `J K^(-1) mol^(-1)`)A. `19.15`B. `-19.15`C. `4.7`D. zero

`1` mole of an ideal gas at `25^(@)` C is subjected to expand reversib

1.	`1` mole of an ideal gas at `25^(@)` C is subjected to expand reversibly and adiabatically to ten times of its initial volume. Calculate the change in entropy during expansion (in `J K^(-1) mol^(-1)`)A. `19.15`B. `-19.15`C. `4.7`D. zero
Answer» Correct Answer - D `DeltaS = nC_(v) l"n" (T_(2))/(T_(1)) + nR l"n" (V_(2))/(V_(1))` For adiabatic process `(Q-0)` `DeltaE = W " " implies" "nC_(v) ln(T_(2))/(T_(1)) =-nR ln (V_(2))/(V_(1)) " " therefore" "DeltaS=0`

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`1` mole of an ideal gas at `25^(@)` C is subjected to expand reversibly and adiabatically to ten times of its initial volume. Calculate the change in entropy during expansion (in `J K^(-1) mol^(-1)`)A. `19.15`B. `-19.15`C. `4.7`D. zero

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