Chapter 7: Energy, Rate, + Equilibrium

Question 1

Thermodynamics

Answer 1

the study of work, energy, and heat

Question 2

Collision Theory

Answer 2

1. Molecular Collisions: reactant particles must interact with each other before any reactions can occur
2. Activation Energy: minimum combined kinetic energy that needs to be exerted
3. Collision Orientation: colliding particles come together in the proper orientation unless the particles involved are single atoms or small, symmetrical molecules

Question 3

First Law of Thermodynamics aka Law of Conservation of Energy

Answer 3

energy go the universe is constant

Question 4

Exothermic

Endothermic

Answer 4

• heat is released as a bi-product

- energy required to break the bonds is larger than the energy released

Question 5

Calculation of Heat Energy in Rxns

Answer 5

Q= m x deltaT x SH
q=measured in cal
m=mass of solution in calorimeter
deltaT= change in temperature of solution from initial to final state 
SH= specific heat of the solution