Question

Air is filled at 60°C in a vessel of open mouth. The vessel is heated to a temperature T so that 1/4^th part of air escapes. Assuming the volume of vessel remaining constant, the value of T is 

(a) 80°C 

(b) 444°C 

(c) 333°C 

(d) 171°C

Answer 1

Correct option  (d) 171°C

Explanation:

[As 1/4^th part of air escapes] 

If pressure and volume of gas remains constant then MT = constant