rate of reaction

Question 1

what is the rate of a chemical reaction in terms of reactants

Answer 1

how quickly the reactants in a reaction are used up

Question 2

what is the date of a chemical reaction in terms of products

Answer 2

how quickly the products in a reaction are formed

Question 3

how do you calculate rate of reaction

Answer 3

quantity of reactant used or product made/time taken

Question 4

what are the 2 possible units for rate of reaction

Answer 4

g/s or cm^3/s

Question 5

what is collision theory

Answer 5

chemical reactions only occur when particles collide with sufficient energy

Question 6

what’s are 5 factors that can affect rate of reaction

Answer 6

temperature, surface area, concentration, pressure of gases, catlyst

Question 7

explain why increasing the surface area the rate of reaction

Answer 7

more particles are available to collide so there are more frequent collisions between reactants

Question 8

explain why the concentration increases the rate of reaction

Answer 8

more concentrated means more particles in a given volume, so more frequent collisions between reactants

Question 9

explain why increasing the pressure of gas increases the rate of reaction

Answer 9

less space for particles to move around so more frequent collisions

Question 10

how do catalysts speed up reactions

Answer 10

they provide another route for the reaction to take place which has a lower activation energy