A glass vessel contains air at 60^(@)C. To what temperature must it be heated to expel one third of the air, the pressure . remaining constant. (Neglect the expansion of the vessel)

A glass vessel contains air at 60^(@)C. To what temperature must it be

1.	A glass vessel contains air at 60^(@)C. To what temperature must it be heated to expel one third of the air, the pressure . remaining constant. (Neglect the expansion of the vessel)
Answer» `127^(@)C` `226.5^(@)C` `327^(@)C` `427^(@)C` ANSWER :B