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 = - 11.488 KJ` `w = - 5.736 kJ` `w = - 4.988 kJ` Solution :`w=-nRTln.(V_(2))/(V_(1))` `w=-2xx8.314xx10^(-3)xx300ln.(40)/(4),` `w=-11.488 J`