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Chemical Equilib
Thermochemistry, Equilbrium, Reaction rates
| Term | Definition |
|---|---|
| Concentration of products and reactants stops changing | equilibrium |
| Adding heat makes reactions go: | Faster |
| Decreasing concentration of reactants makes reactions go: | Slower |
| Reaction in which products can react to re-form reactants | Reversible |
| Removing products in a reversible reaction | Shifts the equilibrium to the right |
| Adding products in a reversible reaction | Shifts the equilibrium to the left |
| Which two factors are important to have a successful collision in a chemical reaction? | Sufficient energy and the correct orientation of the particles |
| What is a catalyst? | Lowers the activation energy |
| What is a calorie? | Amount of energy that increases temperature of 1 ml of water by 1 degree C |
| What is a joule? | SI unit of energy; 1 cal = 4.182 joules |
| In an exothermic process, energy is a: | product |
| In an endothermic reaction, energy is a: | reactant |
| A reaction that will give off heat to the surroundings | Exothermic |
| A reaction that absorbs or take in heat from the surroundings | Endothermic |
| How do you increase the surface area of a solid? | Cut it up or grind it into tiny pieces |
| What are biological catalysts called? | Enzymes |
| What is the energy that gets a reaction started called? | Activation energy |
| What is a Calorie? | 1000 calories or 1 kcal |
| What do we measure the average kinetic energy of particles in a substance as? | Temperature |