Gas Laws Problems

Question

a gas occupies 800 ml at a temperature of 30 degrees C.What is the volume at 90 degrees C if the pressure remains stable

Answer 1

When pressure remains constant, we are dealing with Charles' Law:

V1/T1 = V2/T2

V1 = initial volume = 800 ml

T1 = temperature in Kelvin = 30ºC + 273 = 303K

V2 = final volume = ?

T2 = final temperature in K = 90ºC + 273 = 363K

Solving for V2 we have ...

V2 = V1T2 / T1

V2 = (800 ml)(363K) / (303K)

V2 = 958 mls