Calculate q, w & `Delta u`when a gas is Compressed from 15 lit to 5 lit at 5 atmospheric pressure in iso thermal irreversible process.

Calculate, DeltaU, W and Q when an ideal gas is compressed at 5 atm pressure from 25 litre to 5 litre at a constant temp of 27^@C .

The amount of work done when a gas is expanded from a volume of 5 L to 10 L against a constant external pressure of 2 atm is used to heat 15 g of water present at a temperature of 300 K. Calculate the final temperature of water. (Given : molar heat capacity of water = 75.6 J. K^(-1). " mol"^(-1) ).

The work done when one mole of an idea! gas is compressed form a volume of 5 m^3 to 1 dm^3 at 300 K, under a pressure of 100 kPa is

When 1 mol of an ideal gas is compressed in a reversible isothermal process at T K, the pressure of the gas changes from 1 atm to 10 atm. In the process, if the work done by the gas be 5.744kJ, then T is-

A cylinder fitted with a piston contains an ideal gas with a volume of 21 L. the gas is compressed isothermally to 1/3 rd of its initial volume under a constant external pressure of 3 atm. Calculate q, w and DeltaU .

Pressure of 1 mol of an ideal gas confined in a cylinder fitted with a piston is 50 atm. The gas is expanded reversible when the cylinder is kept in contact to a thermostat at 25^(@)C . During expansion, the pressure of the gas is decreased from 50 to 5 atm. calculate the change in entropy in this process. if the heat absorbed by the gas during expansion be 5705J, then calculate the change in entropy of the surroundings ?

Calculate the change in internal energy of the gas when it expands from 2L to 8L at a constant pressure of 2 atm absorbing 400 J of heat in the process. (1L *atm=101.35J ).

2 mol of an ideal gas is compressed by an isothermal reversible process at 27^(@)C . As a result, pressure of the gas increases from 1 to 10 atm. Calculate w, q, Delta U and Delta H .