CH 104 Lecture Notes - Lecture 7: Atmospheric Pressure, Intermolecular Force, Torr
Document Summary
A definite shape and container takes that shape of the container it occupies volume. Fixed arrangement of close very close particles apart. Exists as a gas, liquid, or a solid, depending on the balance between. Force exerted per unit area as gas particles collide with walls of container. P increases, v decreases for constant t and n. T increases, v increases for constant p and n. Relationship between p, v, and t when two quantities are changed and moles (n) is constant (for atm): r = 0. 0821 x (l x atm)/(mol x k) For a mixture of three gases, a, b, and c. P total = pa +pb +pc (partial pressures of a, b, and c) Boiling point is the temperature at which a liquid is converted to the gas phase. Melting point is the temperature at which a solid is converted to the liquid phase. The stronger the intermolecular force, the higher the boiling and melting points.
