2 mole of an ideal gas at 27^(@)C expands isothermally and reversibly from a volume of 4 litre to 40 litre. The work done (in kJ) by the gas is

2 mole of an ideal gas at 27^(@)C expands isothermally and reversibly

1.	2 mole of an ideal gas at 27^(@)C expands isothermally and reversibly from a volume of 4 litre to 40 litre. The work done (in kJ) by the gas is
Answer» `w= -28.72kJ` `w= - 11.488kJ` `w= -5.736kJ` `w = - 4.988kJ` SOLUTION :`W = -nRT "ln" (V_(2))/(V_(1)) = -2 xx 8.314 xx 300 "ln" (40)/(4) =11.488`