Question

describe mayer's formula

Answer 1

the difference between the specific heat of a gas at constant pressure and at constant volume is equal to universal gas constant (R)divide by the molecular weight (M)of the gas i.e. Cp-Cv= R M

Answer 2

Mayers formula: Cp - Cv = R Derivation: ΔU = ΔQ + ΔW ΔU = Cv ΔT (At pressure is constant) ΔQ = Cp ΔT (At pressure is constant) ΔW = -P ΔV (Negative since the calculation been complete) Pv = RT (1 mole of gas) Because of pressure is constant, R is also constant Change in V will make change in T PΔV = R ΔT Cv ΔT = CpΔT - RΔT Divided by ΔT Cv = Cp - R R is Subject Cp - Cv = R.