CHM220H1 Study Guide - Midterm Guide: Irreversible Process, Bond-Dissociation Energy, Endergonic Reaction
Document Summary
System is the reaction, surroundings is everything else; together is the universe. System: open mass and energy exchange, closed only energy exchange, diathermic allows energy to leave system as heat, adiabatic means no heat exchange between system and surroundings. Properties of matter: extensive properties values directly proportional to amount of material. Intensive properties values do not depend on amount of material. Intensive properties usually defined as ratio of two extensive properties. Ideal gas occupies 22. 414l at 1atm and 273. 15k (stp: assuming gas molecules possess negligible volume, no interaction between molecules. Idea gas only useful for high t and low p. Z= compressibility factor = pv/nrt: z is 1 for idea gas at any p or t. Van der waals: a for attractive intermolecular forces, b for finite volume of molecules, also unreliable at high p and low t, slight correlation between a and boiling point. Average kinetic energy for one mole of gas:
