Rates Of Reaction

Question 1

What is enthalpy

Answer 1

Is a measure of the chemical potential energy of a substance

Question 2

What is the enthalpy reaction equation

Answer 2

Triangle T = Hp- Hr

Question 3

🔺H is ____ for a exothermic reaction

Answer 3

Negative

Question 4

🔺H is ___ for an endothermic reaction

Answer 4

Positive

Question 5

What is activation energy (Ea)

Answer 5

Minimum amount of energy for particles to collide

Question 6

The ___ the activation energy the ___ the reaction

Answer 6

Higher, slower

Question 7

What is a catalyst

Answer 7

A substance which speeds up a chemical reaction without being used up by the reaction

Question 8

The catalyst helps the ____ to form and to ___ the activation enegry

Answer 8

Activation complex
Lower

Question 9

What does the rate vs concentration graph look like

Answer 9

Straight line diagonal from left to right /

Question 10

What does the rate vs temp graph look like

Answer 10

Curve from left to right ⤴️

Question 11

What is the definition of an activated complex

Answer 11

An unstable, high energy, arrangement of atoms formed between reactants and products