If the temperature of a 50mL sample of a gas is changed from 200K to 400K under constant pressure, what is the new volume of gas?

The new volume is 100mL

Explanation:

From the question given, we obtained the following information:

V1 = 50mL

T1 = 200K

T2 = 400K

V2 = ?

V1 / T1 = V2 / T2

50/200 = V2 / 400

Cross multiply to express in linear form

200 x V2 = 50 x 400

Divide both side by 200

V2 = (50 x 400) / 200

V2 = 100mL

The new volume is 100mL