Question

derive an relation betwen cp and cv of an reaction​

Answer 1

Answer:

heat at constant pressure (Cp) is greater than the specific heat at constant volume (Cv). As derived. in section 20.5 of Ohanian, the two are related by.Cp = Cv + R. .

Explanation:

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Answer 2

Heat(q) at constant volume is given as. qv=Cv∆t=∆u. Heat(q) at constant pressure is given as qp=Cp∆t=∆h. but. H=U+RT. ∆H=∆U+∆(RT). or∆H=∆U+R∆T or∆H-∆U=R∆T. ___(1). Substituting the values of ∆Hand∆U in equation(1)we get,Cp∆T-Cv∆T=R∆VT or Cp-Cv=R [for one mole of an ideal gas ] Thus Cp is greater than Cv by the gas constant R i.e approximately 2 calories or 8.314 joules.