Which of the following is arranged in the increasing order of enthalpy of vaporisation? (a) NH3, PH3, AsH3 (b) AsH3, PH3, NH3 (c) NH3, AsH3, PH3 (d) PH3, AsH3, NH3

Notifications

Clear all

Which of the following is arranged in the increasing order of enthalpy of vaporisation?

Thermodynamics

Last Post by Freddie12 4 years ago

1 Posts

2 Users

0 Likes

214 Views

06/10/2020 11:44 am

Topic starter

Shaneylee18

(@shaneylee18)

Illustrious Member

2184 Posts
2182 0 0

Which of the following is arranged in the increasing order of enthalpy of vaporisation?

(a) NH₃, PH₃, AsH₃

(b) AsH₃, PH₃, NH₃

(d) PH₃, AsH₃, NH₃

Add a comment

Topic Tags

neet thermodynamics

1 Answer

06/10/2020 11:48 am

Freddie12

(@freddie12)

Noble Member

2094 Posts
0 2094 0

(d) PH₃, AsH₃, NH₃

Explanation:

The order of heat of vaporisation or boiling point of the hydrides of VA group depend upon their molecular weight. Anomalous behaviour of NH₃ is due to H-bonding present in NH₃. Thus the correct order is

NH₃ > AsH₃ > PH₃

Add a comment

321 Forums
27.3 K Topics
53.8 K Posts
7 Online
12.4 K Members

Forum Icons: Forum contains no unread posts Forum contains unread posts

Topic Icons: Not Replied Replied Active Hot Sticky Unapproved Solved Private Closed

Forum

Which of the following is arranged in the increasing order of enthalpy of vaporisation?

Super Globals

Options and Features

How Can We Help?

Home

About Us

Contact Us

Privacy Policy

Term of Use

Copyright © 2020 Eanshub

All Rights Reserved