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

Byju's Answer

Standard XII

Chemistry

Identification of Different Process

Two cylinders...

Question

Two cylinders $P$ and $Q$ of equal capacity are connected to each other via a stopcock. Cylinder $P$ contains an ideal gas at standard temperature and pressure. Cylinder $Q$ is completely evacuated. The entire system is thermally insulated, stopcock is suddenly opened. What is the effect on internal energy of gas ?

Increases

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Decreases

No worries! We‘ve got your back. Try BYJU‘S free classes today!

No change

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

May increase or decrease

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C No change
The process is adiabatic free expansion. Hence
$Δ Q = 0, Δ T = 0$
$\Rightarrow Δ U = 0$

Suggest Corrections

Similar questions

Q. Two cylinders

A

and

B

of equal volume are connected to each other via a stopcock. Cylinder

A

contains an ideal gas at temperature

T

and pressure

P

. Cylinder

B

is completely evacuated. The entire system is thermally insulated. Now stopcock is suddenly opened. Then

Q. Two Cylinders

A

and

B

of equal capacity are connected to each other via a stop cock.

A

contains an ideal gas at standard temperature and pressure,

B

is completely evacuated. The entire system is thermally insulated. The stop cock is suddenly opened.The process is

Two cylinders A and B of equal capacity are connected to each other via a stopcock. A contains a gas at standard temperature and pressure. B is completely evacuated. The entire system is thermally insulated. The stopcock is suddenly opened. Answer the following:

(a) What is the final pressure of the gas in A and B?

(b) What is the change in internal energy of the gas?

(d) Do the intermediate states of the system (before settling to the final equilibrium state) lie on its P-V-T surface?

Q. Two cylindric A and B of equal capacity are connected to each other via a stopcock . A contains a gas STP. , B is completely
evacuated, the entire system is thermally insulat ed .. The stopcock is suddenly op ened ans
What is the final pressure of he gas in A and B
what is the change in internal energy of the gas
what is the change in temperature of the gas
Pls give the reason also

Q. Statement - 1
Two vessels A and B are connected to each other by a stopcock. Vessel A contains a gas at

0^{o} C

and 1 atmosphere pressure and vessel B is evacuated. The two vessels are thermally insulated from the surroundings. If the stopcock is suddenly opened, there will be no change in the internal energy of the gas.

Statement - 2
No transfer of heat energy takes place between the system and the surroundings.

Join BYJU'S Learning Program

The correct option is C No changeThe process is adiabatic free expansion. Hence ΔQ=0,ΔT=0 ⇒ΔU=0

The correct option is C No change
The process is adiabatic free expansion. Hence
$Δ Q = 0, Δ T = 0$
$\Rightarrow Δ U = 0$