Question

if a gas has f degree of freedom find the ratio of cp & cv
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Answer 1

Each molecule has f degree of freedom

Cp = [(f / 2) + 1]R Cv = (f/2)R

(Cp / Cv) = [({(f/2) + 1}R) / {(f/2)R}]

= [1 + {1 / (f/2)}] = [1 + (2/f)]