Question

51.
1 liter of a gas weighs 2 g at 300 K and 1 atm pressure. If the
pressure is made 75 atm, at which of the following temperatures
will 1 litre of same gas weight 1 g?
A. 450 K
B. 800 K
C. 600 K
D. 900 K​

Answer 1

Answer:

ANSWER

PV=nRT (Ideal gas equation.)

⟹

P

2

V

2

P

1

V

1

=

n

2

T

2

n

1

T

1

⟹

0.75×1

1×1

=

M

w

1

×T

M

w

2

×300

⟹T=

1

2×300×0.75

=450K

∴ Temperature =450K.