Vocabulary
What is the first law of conservation of energy?
Energy cannot be created nor destroyed, only transformed
Define a catalyst
speeds up a chemical reaction without consuming itself or changing itself
The type of energy available by staying in an object's position / no movement
What is potential energy?
When (delta)H is negative; exothermic or endothermic?
Exothermic
Is this reaction exothermic or endothermic?
Endothermic
Define endothermic
What is any process in which heat is absorbed
How will temperature influence reaction rates?
Increase
In q=mc(delta)T what does the c represent ?
Specific Heat or J / g Degrees celsius
A measure of the degree of randomness of particles in a system
Entropy
What is the activation energy of the forward reaction?
80 KJ
Define exothermic.
What is any process that gives off heat / releases energy
How will increasing concentration influence reaction rates?
Increase
Energy is released when chemical bonds are _______
Broken / Break
True or False : Nature tends to move to increased randomness
True
What is the enthalpy change of the forward reaction?
60 KJ
In the Q=mc(delta)T what is Q representing?
Heats / Joules
How will decreasing surface area influence reaction rates ?
Decrease
A tool to measure the energy absorbed or released as heat in a chemical or physical change
What is a calorimeter?
This refers to the energy as heat content in a system
Enthalpy
What is the enthalpy change of the reverse reaction?
-60 KJ
Define Activation Energy
What is the amount of energy required to initiate a reaction.
why does increasing surface area increase reaction rate?
Allows greater space for greater contact /collision
Transfer of heat through matter by direct contact of the particles
Conduction
True or False : Endothermic is a reaction with a net release of energy
FALSE
What is the activation energy of the reverse reaction?
20 KJ