**Given** Heat given at constant pressure, ΔQ_{p }= 180 J

γ = 1.41

**Required** (i) Increase in the internal energy, ΔU

(ii) Work done by the ideal gas, ΔW

Formulae: (2) (3)

Calculation: Divide (1) by (2),

Put values of ΔQ_{p} and γ from the given data,

To calculate the work done, apply first law with this value of Δu.