How will you distinguish between intensive and extensive properties?

What do you mean by internal energy and internal energy change?

Derive an expression for work done in isothermal reversible expansion of ideal gas.

145.

Calculate the maximum work obtained when 0.75 mol of an ideal gas expands isothermally and reversibly at 27°C from a volume of 15L to 25L.

State first law of thermodynamics in different ways.

If water vapour is assumed to be a perfect gas,
molar enthalpy change for vapourisation of 1 mol of water at 1bar and 100°C is 41kJ mol^–1. Calculate the internal energy change, when

(i) 1 mol of water is vaporised at 1 bar pressure and 100°C.

What informations are provided by the First law of Thermodynamics?

What are the limitations of First law of Thermodynamics?

Derive mathematical form of First law of Thermodynamics.
Or
Derive the relationship between heat, internal energy and work.