- #1

laser1

- 43

- 7

- Homework Statement
- descripion

- Relevant Equations
- PV = nRT

This is chemistry but it's basically physics :D.

I used PV = nRT, I get V = 37.44 L. This is fine. So then I have W = P(Vfinal - Vinitial). Vinitial is zero, because there was no hydrogen gas initially. So I get 3.78 kJ. And as the gas expanded from 0 L to 37.44 L, the gas has done positive work. So the answer (I think) should be 3.78 kJ. The answer given is -3.78 kJ though... Does my logic make sense?

I used PV = nRT, I get V = 37.44 L. This is fine. So then I have W = P(Vfinal - Vinitial). Vinitial is zero, because there was no hydrogen gas initially. So I get 3.78 kJ. And as the gas expanded from 0 L to 37.44 L, the gas has done positive work. So the answer (I think) should be 3.78 kJ. The answer given is -3.78 kJ though... Does my logic make sense?