Lennard-Jones and matter Flashcards
1
Q
Equation for surface tension?
A
gamma = Fdx/2Ldx = 1/2 F/L = energy/surface area
2
Q
Unit of molar mass?
A
g/mol
3
Q
Unit of avagadros constant?
A
mol^1
4
Q
When does equilbrium seperation occur?
A
The minimum of V_LJ
5
Q
How to find seperation energy?
A
Differentiate V_LJ with respect to r, solve for r and sub value of r back into V_LJ
6
Q
What is the derivative of V_LJ equal to?
A
The force
7
Q
Total energy of an LJ molecule when it is being pulled apart?
A
epsilon = -Fr + V_LJ
8
Q
How to find the maximum distance a molecule can resist being pulled apart?
A
Double differentiate with respect to r and solve for r - force is then found by subbing r into force equation
