States that if you can add two r more thermochemical equations to produce a final equation for a reaction, then the sum of the enthalpy changes for the individual reaction is the equal change for the final reaction.
What is Hess's Law?
100
measure of the disorder or randomness of a system.
What is entropy?
100
The change in concentration of a reactant or product per unit of time, expressed as mole/(L*s).
What is a reaction rate?
100
a numerical value that relates the reaction rate and the concentrations of reactants at a given temperature.
What is Specific rate constant
200
law of conservation of energy
states that in any chemical reaction or physical process, energy can be converted from one form to another, but it's neither created nor destroyed.
200
a balanced chemical equation that includes the physical states of all reactants and products and the energy change, usually expressed as the change in empathy.
What is a thermochemical equation?
200
Any physical or chemical change that once begun, occurs with no outside intervention.
What is spontaneous process?
200
states that atoms, ions, and molecules must collide to react.
What is collision theory?
200
Mathematical relationship between the rate of a chemical reaction at a given temp and concentrations of reactants.
What is the rate law?
300
chemical potential energy
the energy that is stored in a substance because of its composition is called...
300
the heat required to vaporize one mole of liquid..
What is molar enthalpy of vaporization?
300
measure of the numbers of possible ways that the energy of a system can be distributed and this is related to the freedom of the systems particles to move and number of ways it can be arranged.
What is entropy?
300
A substance that slows down, or inhibits the reaction rates. :)
What is an inhibitor?
300
In which reaction does the rate-determining step limit the instantaneous rate of the overall reaction?
What is a Complex reaction?
400
the study of heat changes that accompany chemical reactions and phase changes.
What is thermochemistry
400
Defined as the change in enthalpy that accompanies the formation of one mole of the compound in its standard state from its elements in their standard states.
What is the standard enthalpy (heat) of formation?
400
states that spontaneous processes always proceed in such a way that the entropy of the universe increases.
What is the second law of thermodynamics?
400
exists in a physical state different than that of the reaction it catalyzes.
What is heterogeneous catalyst?
400
The slope of the straight line tangent to the curve at a specific time
What is instantaneous rate?
500
heat produced by the reaction flows from the heat pack to your cold hands.
What kind of energy transfer occurs during the exothermic heat-pack reaction?
500
it can be calculated by adding 2 or more thermochemical equations in their enthalpy changes.
How can enthalpy change for a reaction be calculated?
500
Energy available to do work.
What is free energy?
500
Homogeneous catalyst
What is a catalyst that exists in the same physical state as the reaction it catalyzes?
500
the complete sequence of elementary steps that makes up a complex reaction.