00:01
Hi, so we have three questions here.
00:05
Okay, first one, we have the pressure, the number of moles, and then the temperature, and we are to solve for the volume.
00:18
So we will be using the ideal gas equation for this.
00:22
Pv is equivalent to nrt.
00:25
Rearranging this to solve for volume, we'll have nrt over the pressure.
00:31
So the number of moles is 4 .32.
00:34
This is moles, and then r, the gas constant, is equivalent to 0 .0821.
00:40
This is liters, 80 ampere mole kelvin, and then the temperature is 37 degrees celsius.
00:48
So we need to convert this to kelvin.
00:50
Let's add 273, okay, and then the pressure is 532.
00:56
This is in torr.
00:57
We need to convert this to 80 amp.
00:59
This is the conversion factor.
01:01
760 torr is 180 amp.
01:04
Cancel some units, moles, kelvin, torr, 80 amp.
01:09
As you can see, the remaining unit will be liters since we're solving for volume.
01:14
So calculating this, we'll get 157 liters, and that's it.
01:20
This is our answer for the first question.
01:22
Second one, we are to solve for the volume when there's change in pressure.
01:31
So let's write first to give information...