Question

One mole of an ideal gas at 300 k is expanded isothermally from an initial volume of 1 litre to 10 litres. the δe for this process is (r = 2 cal mol¯¹ k¯¹) (aipmt, 1998)

Answer 1

As given process expanded isothermally means at constant temperature

ΔT = constant

We known that the internal energy of gases depend on the temperature as we increases the temperature the kinetic energy of molecules increases that increases the internal energy of molecules.

Therefore, the internal energy of gases also remained constant at constant temperature

So for given isothermal process

ΔE = 0  

Answer 2

remains zero is ur answer