Test #1 Stuff Flashcards
1
Q
What is Hess’s law?
A
Heat of fusion (or melting) + Heat of vaporization = Heat of sublimation
2
Q
What is vapor pressure?
A
The pressure exerted by vapors over a liquid at equilibrium.
3
Q
How do intermolecular forces effect Pv (vapor pressure?
A
The stronger the intermolecular forces, the lower the vapor pressure.
4
Q
What increases the Pv of a liquid?
A
Increasing temperature.
5
Q
Describe each IF in terms of strength.
A
Ion-dipole H-Bond Dipole-Dipole Ion-induced dipole Dipole-induced dipole Dispersion
6
Q
How can you tell which molecules have stronger dispersion forces in relation to one another?
A
Via their size, the larger the size the larger the dispersion forces.
7
Q
If intermolecular forces are stronger, what does that mean about the boiling point?
A
It means the boiling point is higher.
