Question

some one can explainMayor's formula plz ??

Answer 1

we derived Mayer's law in thermodynamics. Mayer's formula is Cp - Cv = R. Here Cp is molar specific heat capacity of an ideal gas at constant pressure, Cv is its molar specific heat at constant volume and R is the gas constant.

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

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