Posted by Don on Tuesday, November 30, 2010 at 5:20am.
a container of 2.00 moles of an ideal gas as 1000 K undergoes a constant pressure and volume process in which the number of moles is increased to 5moles. what is the final temperature of the gas.
How do I start this? Do I somehow use the ideal gas law?

Chem  Dr Russ, Tuesday, November 30, 2010 at 6:40am
Use PV=nRT
so R=P1V1/n1T1
and R=P1V1/n2T2
R=P1V1/n1T1=P1V1/n2T2
n1T=n2T2

Chem  Don, Tuesday, November 30, 2010 at 6:56am
I got the answer to be 400. But can you explain to me those formulas? I'm still a bit confuse on how you got them. Where do these P1 and P2 and T1 and T2 come from

Chem  Dr Russ, Tuesday, November 30, 2010 at 9:07am
The original formula is
PV=nRT
for the question given we have a set of starting conditions
P=P1
V=V1
n=n1
T=T1
hence
P1 x V1=n1 x R x T1
which rearranges to
R=P1V1/n1T1
the second set of conditions is
P=P1
V=V1
(because P1 and V1 are constant in the question)
T=T2
N=n2
so
R=P1V1/n2T2
as R is the same in both cases
R=P1V1/n1T1=P1V1/n2T2
which rearranges to
n1T=n2T2
Answer This Question
Related Questions
 Physics  Consider an ideal gas enclosed within a container with a moveable ...
 chemistry  Ideal Mixed Gas Law problems 1. What is the pressure generated by a ...
 chemistry  If I contain 3 moles of gas in a container with a volume of 60 ...
 Physics  Suppose that 4.7 moles of a monatomic ideal gas (atomic mass = 8.5 × ...
 Physics  A tank with a constant volume of 3.44 m3 contains 14 moles of a ...
 chem  A flexible container at an initial volume of 8.15 L contains 2.51 mol of ...
 Chem  A flexible container at an initial volume of 5.12 L contains 7.51 mol of ...
 Physics  A cylinder with a movable piston contains 14 moles of a monatomic ...
 pressure  a flexible container at an initial volume of 7.14L contains 9.51mol ...
 physics  A 22.0L tank of carbon dioxide gas (CO2) is at a pressure of 9.40 105...
More Related Questions