00:02
Hi there.
00:03
In this question, we have a sample of gas.
00:06
So that means the number of moles is constant.
00:08
We also have to assume that the temperature is constant because we are not given any information about temperature.
00:16
And if temperature was changing, that would also affect the pressure.
00:19
So we have to assume that temperature is constant in this problem.
00:24
And when the number of moles and temperature are constant, then the relationship between pressure and volume is described by boyle's law.
00:34
Boils law is a gas law that tells us when the number of moles and temperature are constant, the pressure and the volume of the gas are inversely proportional.
00:51
In an inverse proportion, as one variable goes up, the other goes down, and vice versa.
01:01
So we can describe boyle's law with an equation that looks like this.
01:05
P1 times v1 equals p2 times v2, or p is pressure, v is volume.
01:13
The ones represent the initial conditions and the twos represent the new conditions.
01:18
All right...