CHARLES’ LAW
SAMPLE PROBLEM
1. An inflated balloon with a
volume of 0.75 L at 30 degree
celcius was placed inside the
freezer where the temperature
is -10◦ C. Find out what will
happen to the volume of the
balloon if the pressure remains
constant.
GIVEN: INITIALS CONDITIONS
FINAL CONDITIONS
V1 = 0.75 L
T1 = 30◦C
Equation: V1
T2= V2 T1
or
V1/ T1= V2/ T2
V2 = ?
T2 = -10 ◦C
SOLUTION:
 V1T2=V2T1
 V2= V1T2


T1
= (0.75L) (263K) = 197.25L
303K
303
= 0.65L