Chem gen ed 2

The __ is the subject of interest.

system

The __ is everything else.

surroundings

__ processes: when the system gains heat energy from the surroundings

Endothermic

__ processes: when the system loses heat energy to the surroundings

Exothermic

The specific format requirements of formation reactions are 4 things:

1. Reactants must be pure elements (H₂, N₂,O₂,F₂,Cl₂,Br₂,I₂)

2. Must be in its “standard” physical state

3. Singular product must have a coefficient of 1

4. Reaction must occur at standard temp and pressure

Any point along the rate line is called the __ rate?

instantaneous

__rate is the rate at the very beginning of the reaction

initial

What is it called when it is higher in energy than either the reactants or products?

Transition state

The __ energy is the amount of energy required to the transition state to exist.

activation energy (E_A)

The “valley” between two (or more) peaks is the energy of the __

intermediate

1A→Product

Unimolecular + Rate= k[A]¹

1A+1B→product

Bimolecular + Rate= k[A][B]

2A→product

Bimolecular + Rate= [A]²

A+B+C→product

Termolecular + Rate= [A][B][C]

2A+B→product

Termolecular + Rate= k[A]²[B]

3A→product

Termolecular + Rate= k[A]³

same physical state = _ catalyst

homogeneous

different physical state= __ catalyst

heterogenous (solid)