- #1
MisterP
- 47
- 3
1. The problem statement, all variables and given/know
Given: Nitrogen: 2g, it takes 820cm3 at 2 atm pressure. What is the temperature (T) of gas? Answer: 280K
P*V = n*R*T
P - pressure
V - velocity
n - moles?
R - constant, 0.0820 ? when I use liters, atm
T - temperature in kelvins
At first I calculate moles. 2g/14 - 0,142 moles
Then use equation. 2atm * 0,82L = 0,142moles*0.082*T
And I get a totally different answer for T = 149K
Given: Nitrogen: 2g, it takes 820cm3 at 2 atm pressure. What is the temperature (T) of gas? Answer: 280K
Homework Equations
P*V = n*R*T
P - pressure
V - velocity
n - moles?
R - constant, 0.0820 ? when I use liters, atm
T - temperature in kelvins
The Attempt at a Solution
At first I calculate moles. 2g/14 - 0,142 moles
Then use equation. 2atm * 0,82L = 0,142moles*0.082*T
And I get a totally different answer for T = 149K