wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

'a' and 'b' are van der Waals' constants for gases. Chlorine is more easily liquefied than ethane because

A
a and b for Cl2>a and b for C2H6
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
a and b for Cl2<a and b for C2H6
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
a for Cl2>a for C2H6 but b for Cl2>b for C2H6
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
a for Cl2>a for C2H6 but b for Cl2<b for C2H6
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D a for Cl2>a for C2H6 but b for Cl2<b for C2H6
The value of a is a measure of the magnitude of the attractive forces between the molecules of the gas. Greater the value of 'a', larger is the attractive intermolecular force between the gas molecules.
The value of 'b' related to the effective size of the gas molecules. It is also termed as excluded volume.
The gases with higher value of 'a' and lower value of 'b' are more liquefiable, hence for Cl2 'a' should be greater than for C2H6 but for it 'b' should be less than for C2H6.

flag
Suggest Corrections
thumbs-up
10
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon