Definitions
The energy change that accompanies a chemical reaction
What is change in enthalpy?
Energy will be thought of as a product in the reaction (Heat is released)
Exothermic
Increases chemical reaction rate because the reactant molecules (or atoms) move faster, increasing the chance for a collision.
What is higher temperature?
The point at which both the forward and reverse actions in a chemical equation have equal reaction rates.
What is chemical equilibrium?
1,000 chemistry calories
What is 1 food calorie?
A measure of the disorder that exists in any system
What is entropy?
Energy will be considered a reactant (heat is absorbed)
Endothermic
Doubles for every 10C increase in temperature.
What is the rate of many chemical reactions?
What will happen visually over time with forward reaction and reverse reaction?
the two separate lines with merge into one (chemical equilibrium)
The maximum amount of solute that can dissolve in a given amount of solvent.
What is solubility?
The rate of change of a product in a chemical reaction
What is the reaction rate?
Enthalpy is a state function
What is Hess's Law?
Decreases the chemical reaction rate because their are fewer reactant molecules (or atoms) to collide with one another.
What is decreasing concentration?
The number of chemical reactions that are equilibrium reactions.
What is all?
A substance that turns one color in the presence of acids and another color in the presence of bases.
What is an indicator?
Catalysts that are in a different phase than the reactants.
What is heterogeneous catalysts?
The energy necessary to start a chemical reaction
What is activation energy?
Speed up the reaction rate without actually getting used up in the chemical reaction.
What is catalyst?
The symbol for the equilibrium constant.
What is K?
A reaction that changes a compound into its consituent elements.
What is decomposition reaction?
Energy that is transferred as a consequence of temperature differences.
What is heat?
The entropy of the universe must always either increase or remain the same. It can never decrease.
What is the second law of thermodynamics?
Catalysts that have the same phase as at least one of the reactants.
What is homogeneous catalyst?
Can be used as a gauge to tell us where the reaction will end up at equilibrium.
What is the equilibrium constant?
The study of matter.
What is chemistry?