Question

At a constant temperature of 18.0 degrees C, a 2.59 L container has a pressure of 266 kPa. If the gas pressure changes to 250. mmHg. what is the new volume?

Answer 1

`20.7` L.

Explanation:

Use Boyle's law to solve this problem. The law is:

`P_1V_1=P_2V_2`

Next, you need to make sure all of the units are equal. Convert mmHg into kPa.

#250. mmHg * ((101.325 kPa)/(760 mmHg)) = 33.3 kPa

Now all you have to do is plug everything in and solve for `V_2`.

`(266 kPa)(2.59 L) = (33.3 kPa)(V_2)`
`V_2 = ((266 kPa)(2.59 L))/(33.3 kPa) = 20.7 L`