Question

According to ideal gas law, what will be the volume of 0.25 mol of nitrogen at 0.82 atm pressure and 57 oC temperature?

A) 8 L
B) 8.25 L
C) 0.825 L
D) 82.5 L

Answer 1

Hi the ideal gas law is PV=nrt

It seems that we have our pressure (P), moles (n), and temperature which is in Celsius, 57 C, just add 273 to it. And r is our gas constant, 0.08206.

We need to rearrange the equation to find the volume so in order to do this use algebra and get volume or V by itself

We can do this by dividing both sides by P.

So our new equation is V = nrt/P

Now we simply plug this in.

V = (0.25 mol)(0.08206)(330 K) / (0.82 atm)

V = 8.25 liters, or B.

Hope this helps gamer