Home
Class 11
CHEMISTRY
When helium gas (at room temperature) un...

When helium gas (at room temperature) undergoes the Joule-Thomson expansion , heating of the gas is observed because

A

helium is an ideal gas

B

the inversion temperature of helium gas is very high

C

helium is a noble gas

D

the inversion temperature of helium gas is very low

Text Solution

Verified by Experts

The correct Answer is:
D
At inversion temperature , there is neither heating nor cooling. Below the inversion temperature, there is heating effect.
Thus , when a compressed gas is allowed to expand thriugh a porous plug (joule - Thomson expansion) at a temperature above its inversion temperature, there is a rise in temperature.
Promotional Banner

Topper's Solved these Questions

  • STATES OF MATTER

    R SHARMA|Exercise Follow -up Test 10|15 Videos

  • STATES OF MATTER

    R SHARMA|Exercise Follow -up Test 11|8 Videos

  • STATES OF MATTER

    R SHARMA|Exercise Follow -up Test 8|14 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    R SHARMA|Exercise Archives|26 Videos

  • STRUCTURE OF ATOM

    R SHARMA|Exercise ARCHIVES|55 Videos

Similar Questions

Explore conceptually related problems

Which one is gas at room temperature?

The Joule. Thomson expansion of a gas is an

The Joule -Thomson coefficient for a gas is zero at .

A gas at initial temperature T undergoes sudden expansion from volume V to 2V. Then -

Assertion: The gas heated, if its temperature is less than its inversion temperature in Joule-Thomson effect. Reason: Heating in gas is noticed durting Joule-Thomson effect when T gt Y_(i) .

A monoatomic ideal gas undergoes a process ABC . The heat given to the gas is