00:01
Hello students in this question we have to answer some questions on the basis of ideal gas equation so ideal gas equation is given by pv is equal to nr t is pressure v is volume n is number of moles t is temperature and r is gas constant the value of gas constant that is mostly used is 8 .34 jule per mole per kelvin here jule is the unit of energy but we don't have any variable of energy in the ideal gas equation so first we will have to convert this r into a useful value now this value of r contains atmosphere that is the unit of pressure liter that is the unit of volume now this value of r is what we have to use while solving the questions so our first question is the values of pressure volume and temperature are given and we have to calculate the value for n so from the ideal gas equation we can see that n will be equal to pv divided by rt.
01:04
So after putting all the values, it will be equal to pressure that is 2 .35 atmosphere multiplied by volume that is 1 .17 liter divided by r that is 0 .082 multiplied by temperature that is 201.
01:22
Now this value will be equal to number of moles.
01:27
So si unit will be number of moles.
01:29
Now, final answer for number of moles will be 0 .167 moles.
01:41
In the second part of question, we have given the value of pressure, number of moles, temperature and r, and we have to calculate the amount of volume.
01:50
Now, value of r contains pressure in atmospheric units, but pressure which is given is in tor.
01:56
So we will have to first convert it.
01:58
So we know that 1 tor is equal to 0 .00132 atmosphere.
02:06
Therefore 512 tor will be equal to 0 .00132 multiplied by 512 atmosphere.
02:16
This will be equal to 0 .674 atmosphere.
02:22
Now we have the pressure units in atmosphere.
02:25
We can calculate volume.
02:26
So volume from the ideal gas equation will be equal to nrt divided by p...