First slide

First law of thermodynamics

Question

One mole of an ideal diatomic gas undergoes a process AB as shown. Pressure at A and B are $5 P_{0}$ and $P_{0}$ while volumes are $V_{0}$ and $5 V_{0}$ respectively. On the basis of the given information answer the following question (s).

Moderate

Question

Choose the correct option regarding the process $A \to B$ .

Solution

Temperature of gas at A and B is equal so $Δ U = 0.$
Equation of process

$P = - \frac{P_{0}}{V_{0}} V + 6 P_{0}$ ... (1)
Heat reverse its direction when slope of line should be equal to $\frac{γ P}{V} = \frac{P_{0}}{V_{0}}$ .. (2)
From equation (1) and (2)
$V = \frac{7}{2} V_{0}, P = \frac{5}{2} P_{0}$

Question

During the process from $A \to B$ , pressure and volume of the gas, where the direction of flow of heat is reversed, is

Solution

Temperature of gas at A and B is equal so $Δ U = 0.$
Equation of process

$P = - \frac{P_{0}}{V_{0}} V + 6 P_{0}$ ... (1)
Heat reverse its direction when slope of line should be equal to $\frac{γ P}{V} = \frac{P_{0}}{V_{0}}$ .. (2)
From equation (1) and (2)
$V = \frac{7}{2} V_{0}, P = \frac{5}{2} P_{0}$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App