C2.8 How Fast? How Furious? Flashcards Preview

C2 Chemistry > C2.8 How Fast? How Furious? > Flashcards

Flashcards in C2.8 How Fast? How Furious? Deck (21)
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1

reaction (chemical)

A process through which chemicals change in some way to make new chemicals.

2

pressure

The force exerted per unit area (e.g. N/m2).

3

activation energy

The minimum energy that is needed to break the existing chemical bonds when two particles collide.

4

precipitate

A solid which forms from a liquid, often when two solutions are mixed.

5

Haber process

The industrial process used to convert hydrogen and nitrogen into ammonia.

6

endothermic reaction

A reaction that takes in energy.

7

concentration

The amount of a substance in a given volume of solution.

8

sensor

A device which detect one form of energy and turns it into electricity.

9

exothermic reaction

A reaction that gives out energy.

10

equilibrium

A balance point.

11

collision theory

The theory of chemical reactions that describes how particles must collide with enough energy to react.

12

enzyme

A biological catalyst.

13

fertiliser

Something which provides the essential minerals that plants need to grow (particularly nitrogen compounds).

14

rate of reaction

The speed at which a chemical reaction progresses; calculated as 1/(the time taken for the reaction to take place) or 1/(the time taken for a given amount of product to form).

15

catalyst

A substance which speeds up a chemical reaction without being used up.

16

calibrated

Set against a known scale.

17

dynamic equilibrium

The equilibrium point in a reversible reaction where the rates of the forward and backward reactions are the same, so the proportions of different substances remain constant.

18

catalytic converter

A device fitted to vehicle exhausts which uses a catalyst to convert dangerous exhaust gases into less harmful gases.

19

organic

To do with living processes.

20

surface area

The surface of a solid that is available for chemical reactions.

21

reversible

A chemical reaction that can be made to work in either direction.