At 1.01 atm and 15.0°C a constant - pressure tank has 255 #m^3# of propane. What is the volume of the gas at 48.0°C?

1 Answer
Dec 9, 2015

The volume at #"321.2 K"# #("48.0"^"o""C")# is #"251 m"^3"#.

Explanation:

This is an example of the combined gas law, with the equation #(P_1V_1)/(T_1)=(P_2V_2)/(T_2)#.

Given/Known
#P_1="1.01 atm"#
#V_1="225 m"^3"#
#T_1="15.0"^"o""C"+273.15="288.2 K"#
#P_2="1.01 atm"#
#T_2="48.0"^"o""C"+273.15="321.2 K"#

Unknown
#V_2#

Solution
Rearrange the equation to isolate #V_2# and solve.

#V_2=(P_1V_1T_2)/(T_1P_2)#

#V_2=(1.01cancel"atm"xx225"m"^3xx321.2cancel"K")/(288.2cancel"K"xx1.01cancel"atm")="251 m"^3"#