The pressure of a piston with a volume of 650 cm3 and 85ºC is 830 mmHg. It is heated to 350ºC and compressed to a volume of 65 cm3. What is the new pressure?

34176.5 torr

Explanation:

It is given that :

Initial pressure, torr

Initial volume,

Initial temperature,  

Final volume,  

Final temperature,  

Therefore, using the combined gas laws, we can write :

Substituting the values, we get

    = 34176.5 torr

So the new pressure is 34176.5 torr.

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.