Class XI Chemistry Thermodynamics 1

Find the work done when 2 mole of hydrogen expand isothermally from 15 to 50 litres against a constant pressure of 1 atm at 25 ºC.

For the reaction
A(g) + 2B(g) → 2C(g) + 3D(g),
the value of ΔH at 27 °C is 19.0 kcal. The value of ΔE for the reaction would be
(R = 2.0 cal K^–1mol^–1)

Which one is not a state function -

One mole of an ideal gas at 300 K is expanded isothermally from an initial volume of 1 litre to 10 liters. The ΔE for this process is
(R = 2 cal mol^–1 K^–1)–

The work done in erg for the reversible expansion of one mole of an ideal gas from a volume of 10 litres to 20 litres at 25 º C is–

From the standard enthalpies of formation values for some compounds (in KJ mole^–1), predict which one of them will be most stable?

A gas expands isothermally and reversibly. The work done by the gas is -