Question

An open vessel at 27'c is heated untill 3/4th mass of the air in it has been expelled .neglecting the expansion of the vessel ,the temperature to which the vessel has been heated is

Answer 1

Answer:

Initial mass of gas at 27

o

C be n=n

1

on heating

4

3

mole of air expells at temperature T

∴ moles of air left at T=n−

4

3n

=

4

n

Under initial condition of P and V

n

1

T

1

=n

2

T

2

n×300=

4

n

×T

T=1200K=926.85

o

C