Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Semester 2 review
| Question | Answer |
|---|---|
| measures the heat changes associated with chemical reactions. | Thermochemistry |
| The SI unit of Heat and energy | Joules |
| refers to all the substances taking part in a reaction | system |
| a measure of the average kinetic energy of the particles in a sample. | Temperature |
| the amount of energy required to raise the temperature of one gram of water one degree Celsius. | calorie |
| a dietary calorie (Calorie) | Kilocalorie (1000 calories) |
| the heat content of a system | Enthalpy (H) |
| Means "The change in" something | Delta (Δ) |
| when energy flows into the reaction, and ΔH is positive. Feels cold to the touch. | endothermic reaction |
| when energy flows into the reaction, and ΔH is negative. Feels hot to the touch. | exothermic reaction |
| the amount of energy required to raise the temperature of one gram of a substance one degree Celsius | Specific heat capacity, (cp) |
| a gas in which the particles are considered to have no density and these particles exert no attraction for each other. | ideal gas |
| a gas whose particles have volume and feel an attraction for each other. | real gas |
| The spontaneous mixing of gases by the random motion of their particles | diffusion |
| a process by which gas particles pass through a small opening. | effusion |
| the force per unit area on a surface. | pressure |
| S.I. unit for pressure | pascal |
| an instrument used to measure air pressure | barometer |
| Temperature scale used when describing gasses | Kelvin |
| states that the volume of a fixed mass of gas varies inversely with the pressure at constant temperature. | Boyle's law |
| states that the volume of a fixed mass of gas at constant pressure varies directly with the temperature in Kelvin. | Charles law |
| The point at which gas particles lose all their kinetic energy | absolute zero |
| states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of the component gases | Law of partial pressures |
| mixture of 2 or more substances in a single phase | Homogeneous mixture |
| the part of a solution that is being dissolved | solute |
| the part of a solution that does the dissolving | solvent |
| a solution that contains the maximum quantity of solute that dissolves at that temperature. | saturated solution |
| A solution contains less than the maximum amount of solute that can dissolve at a particular temperature | unsaturated solution |
| solutions that contain more solute than is “normally” possible to be dissolved | supersaturated solution |
| reactions that occur in water | aqueous solutions |
| solutions that conduct electricity when in solution or water | electrolytes |
| compounds that dissolve in water but do not conduct electricity | nonelectrolytes |
| The amount of solute in a solution | concentration |
Created by:
ad_g
Popular Chemistry sets