How much heat had to be put in during the process to increase the internal energy of the gas by 1.50×10^4 J ?

Here is the given information and questions that I have already answered:

n=.450 R=8.3145
(Point A)
p=2*10^5 v=.010
(Point B)
p=5*10^5 v=.070
(Point C)
p=8*10^5 v=.070

Temp(A)=535 K
Temp(B)=9350 K
Temp(C)=15000 K

How much work was done by or on the gas in this process?
2.10*10^4 J

1 answer

...just looked at the problem again and figured it out..