00:02
In this question, we have a sample of nitrogen gas enclosed in a container.
00:07
So the number of moles of gas are going to be constant.
00:13
We are also told that the volume of the container is constant.
00:26
So what is changing is pressure and temperature.
00:30
And we know from gaylo -sach's law that pressure and temperature are directly proportional, which gives us the equation p1 over t1.
00:55
Equals p2 over t2.
00:58
This would be a direct proportion showing the relationship between the initial conditions of pressure and temperature and the new conditions of pressure and temperature.
01:08
So let's look at what information we're given in the problem.
01:11
We are given the initial pressure of 1 .35 atmospheres and we are given the initial temperature of 25 degrees celsius.
01:26
However, for any gas law equation, to work properly in the calculation, the temperature must be the absolute temperature, or in other words, the kelvin temperature.
01:37
So i am going to add 273 to this temperature to give me a kelvin temperature.
01:43
Number celsius plus 273 gives you kelvin.
01:46
All right, the new pressure, that is what we are trying to find when the temperature is increased to 355 degrees celsius...