I've got a car with an internal volume of #12000# #L#. If I drive my car into the river and it implodes, what will be the volume of the gas when the pressure goes from #1.0# #atm# to #1.4# #atm#?

1 Answer
David G.
May 21, 2017

We use Boyle's Law: #P_1V_1 = P_2V_2#

Rearanging: #V_2 = (P_1V_1)/P_2 =(1.0xx12000)/1.4 = 8571# #L#

Explanation:

The answer is all above, but let me share a tip. It's possible to memorise Boyle's, Charles' and Gay-Lussac's laws and use them appropriately.

But I find it simpler to just memorise the Combined Gas Law, and then leave out anything that does not change in a particular question:

#(P_1V_1)/T_1 = (P_2V_2)/T_2#

In this case, since temperature isn't mentioned, we simply leave it out and get Boyle's law.

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