A balloon inflated at 250 K has a volume of 4.0 L. What is the new volume at constant pressure if the temperature changes to 500 K?

1 Answer
anor277
Nov 12, 2015

Charles' law states that at constant pressure, absolute temperature and volume are proportional. Mathematically, #V# #prop# #T#. #T#, the temperature, is quoted in Kelvins.

Explanation:

Given the proportionality, #V_1/T_1# #=# #V_2/T_2#. #V_2# is unknown, but #V_2# #=# #(T_2xxV_1)/T_1#

Remember, that this assumes a constant pressure. Charles' law is also the reason that we can fly hot air balloons. The experiment has doubled the temperature, so how will volume evolve? Will it get bigger, smaller, remain the same?

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