Question

The volume of an ideal gas is held constant. Determine the ratio P2/P1 of the final pressure to the initial pressure when the temperature of the gas rises (a) from 35 to 70 K and (b) from 35 to 70 degree Celsius?

Answer 1

Answer:

(a) 2:1

(b) 1543:308

Explanation:

We know, P1V1/T1 = P2V2/T2

acc to q, V is constant ie V1=V2

So, P1/T1 =P2/T2

(a) from the previous equation,

P2/P1= T2/T1 = 70 K/ 35 K = 2:1

(b) from the previous equation,

P2/P1= T2/T1 = 70 °C/ 35 °C = 1543 K/308 K =1543:308