A spontaneous process is an irreversible process and may only by reserved by some external agency.
a) Decrese in enthalpy is the only criterion for spontaneity. Do you agree? Why?
b) Calculate the work done for the reversible isothermal expansion of 1 mole of an ideal gas at `27^oC` , from a volume of 10 `dm^3` to a volume of 20 `dm^3.`

Calculate the work done for the reversible isothermal expansion of 1 mole of an ideal gas at 27^@C , from a volume of 10 dm^3 to a volume of 20dm^3

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.

The work done on the system when one mole of an ideal gas is compressed isothermally to a final volume of 0.01 m^(3) at constant external pressure of 5 bar is 20 kJ. What is initial volume of the gas?

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]

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)

One mole of an ideal gas is allowed to expand reversibly and adiabatically from a temperature 27^(@)C. If work done during the process is 3kJ final temperature of the gas is ( C_(v) = 20 JK^(-1) mol^(-1)]