Pressure
Force / area
Newton/metre2
Pascal
1 atm= …….pascal
101325 pa
101325x10 ³= Kpa
1.01325x 10⁵ = bar
Volume
m³ = 1000L
1L = 10- ³m³ ≈ 10³ cm³ = 1dm³
R gas constant
8.314 Joule / kelvin x mole
0.0821 litre ATM/ kelvin x mole
2 calorie / kelvin mole
Convert 1500 L ATM to joule
8.314 = 0.0821
How many variables are there in
Open system
Closed system
Open system = P, V, S, T, n…….,,G , H, A, U, ù chemical potential
Closed system = P, V, S, T, …………G, H, A, U chemical potential