MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Validity of Assumptions

Let Cv and Cp...

Question

Let C_v and C_p denote the molar heat capacities of an ideal gas at constant volume and constant pressure respectively. Which of the following is a universal constant?
(a) $\frac{C_{p}}{C_{v}}$
(b) C_pC_v
(c) C_p − C_v
(d) C_p + C_v

Open in App

Solution

(c) C_p − C_v

For an ideal gas, C_p − C_v = R , where C_v and C_p denote the molar heat capacities of an ideal gas at constant volume and constant pressure, respectively and R is the gas constant whos value is 8.314 J/K. Therefore, C_p − C_v is a constant. On the other hand, the ratio of these two varies as the atomicity of the gas changes. Also, their sum and product are not constant.

Suggest Corrections

thumbs-up

0

Similar questions

Q. The molar specific heat capacity of an ideal gas, at constant pressure and at constant volume, are denoted by

C_{p} and C_{v}

, respectively. If

γ = \frac{C_{p}}{C_{v}} and R

is the universal gas constant, then

C_{v}

C_{v}

C_{p}

denote the molar specific heat capacities of a gas at constant volume and constant pressure, respectively. Then

Q. The molar specific heat of an ideal gas at constant pressure and constant volume is '

C_{p}

C_{v}

' respectively. If 'R' is the universal gas constant and the ratio of

C_{p}

C_{v}

^{'} γ^{'}

C_{v}

Q. The molar specific heats of an ideal gas at constant pressure and volume are denoted by

C_{p}

C_{v}

, respectively. If

γ =

\frac{C_{p}}{C_{v}}

and R is the universal gas constant, then

C_{v}

Q. The molar specific heats of an ideal gas at constant pressure and volume are denoted by

C_{p}

C_{v}

respectively. If

γ = \frac{C_{p}}{C_{v}}

R

is the universal gas constant, then

C_{v}

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

The Ideal Gas Model

PHYSICS

Watch in App

explore_more_icon

Explore more

Validity of Assumptions

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon