Thermodynamics deals with energy changes of macroscopic systems.
3 moles of an ideal gas at 1.5 atm and `25^@C` expands isothermally in a reversible manner to twice its original volume agaisnt an external pressure of 1 atm. Calculate the work done. [R 8.314 J//K//mol`

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]

Two litres of an ideal gas at a pressure of 10 atm expands isothermally into a vacuum until its total volume is 10 litres. How much heat is absorbed and how much work is done in the expansion?