NEETChemistrySurface Chemistry
Which type of gases is readily adsorbed by a solid, and why?
Options
- AEasily liquefiable gases, as their critical temperatures are lower
- BEasily liquefiable gases, as van der Waals’ forces are stronger near critical temperatures
- CGases with higher critical temperatures, as their van der Waals’ forces are weaker
- DGases with lower critical temperatures, as their van der Waals’ forces are stronger
Correct answer
B. Easily liquefiable gases, as van der Waals’ forces are stronger near critical temperatures
Step-by-step solution
The paragraph mentions that easily liquefiable gases (with higher critical temperatures) are readily adsorbed because van der Waals’ forces are stronger near critical temperatures.