Thermodynamic process differ based on the manner in which it is carried out.
a) Distinguish between reversible and irreversible processes.
b) Calculate the amount of work done when 2 moles of a gas expands from a volume of 2 L to 6 L isothermally and irreversibly against a constant external pressure of 1 atm.

Calculate the amount of work done when 1 mole of a gas expands from a volume of 1 litre to a volume of 5 litres against the constant external pressure of 1 atmosphere (1 litre atmosphere =101.3J)

Thermodynamics deals with energy changes of macroscopic system. a) Consider a chemical reaction taking place in a closed insulated vessel. To which type of thermodynamic system does it belong? b) State the first law of thermodynamics. c) 3 mol of an ideal gas at 1.5 atm and 25^oC expands isothermally in a reversible manner to twice its original volume against an external pressure of 1 atm. Calculate the work done. [R = 8.314 JK^-1mol^-1]

Isothermal, isobaric, isochoric and adiabatic processes are some special thermodynamic processes. In which of these processes, the work done is maximum, when a gas expands from V_1 to V_2 ?

A gas expands from 1l to 6l against a constant pressure of 1 atm and it absorbs 500J of heat Delta U is