Question
A gas occupies a volume of 256mL at a pressure of 250torr at 32 degrees Celsius. Calculate the pressure (in atmosphere)if the volume is reduced to 156mL and the temp is increased to 62 degrees Celsius. I really need the formula that I would be using. I am confused because using PV=nRT there is no moles being given here.
I surely would appreciate it. THanks!
I surely would appreciate it. THanks!
Answers
Two ways to do it.
Use PV = nRT for the first set of conditions and solve for n, then redo PV = nRT, use the n from above and the new conditions, and solve for pressure.
Second way is to use
(P1V1/T1) = (P2V2/T2)
The second way is a little shorter since you cut out the solving for n step.
Use PV = nRT for the first set of conditions and solve for n, then redo PV = nRT, use the n from above and the new conditions, and solve for pressure.
Second way is to use
(P1V1/T1) = (P2V2/T2)
The second way is a little shorter since you cut out the solving for n step.
Thanks! I knew the formula but wasn't quite sure if i convert mL to L in the formula. I know that I must covert C to K and Torr to Atm for the equation.
.628 atm
Related Questions
1. Calculate the number of molecules in a deep breath of air whose volume is 2.15 L at body temperat...
A sample of gas at 38 degrees Celsius occupies a volume of 2.97 L and exerts a pressure of 3.14 atm....
If a gas at 1.2 atm of pressure and 22.0 degrees of Celsius occupies 0.350L, what pressure will hold...