(1) 34 g(2) 340 g3) 202.9One litre of a gas weighs 2 g at 300 K and 1

1.	(1) 34 g(2) 340 g3) 202.9One litre of a gas weighs 2 g at 300 K and 1 atm pressure. If the pressure is made 0.75 atm, at whthe following temperatures will one litre of the same gas weigh one gram(1) 450 KofC.(4) 900 K(2) 600 K(3) 800 K5IPIA Behind City Mall, Jhalwar Road, Kota
Answer» The given data: P1 =1atm; V1 = 1L; P2 =0.75atm; V2 =1l; w1 =2 g; w1=1g; T1 = 300K; T2 =? We know that, P1V1/T1 = P2V2/T2 or P1V1/P2V2 = n1RT1/n2RT2 = w1RT1/w2RT2 Therefore, P1V1/P2V2 = w1RT1/w2RT2 1x1/0.75x1 = 2x 300/1xT2 T2 = 2x300x0.75 T2 = 450 K

(1) 34 g(2) 340 g3) 202.9One litre of a gas weighs 2 g at 300 K and 1 atm pressure. If the pressure is made 0.75 atm, at whthe following temperatures will one litre of the same gas weigh one gram(1) 450 KofC.(4) 900 K(2) 600 K(3) 800 K5IPIA Behind City Mall, Jhalwar Road, Kota

Answer»

The given data: P1 =1atm; V1 = 1L; P2 =0.75atm; V2 =1l; w1 =2 g; w1=1g; T1 = 300K; T2 =?

We know that, P1V1/T1 = P2V2/T2 or

P1V1/P2V2 = n1RT1/n2RT2 = w1RT1/w2RT2

Therefore, P1V1/P2V2 = w1RT1/w2RT2

1x1/0.75x1 = 2x 300/1xT2

T2 = 2x300x0.75

T2 = 450 K