Unit 3 Term 1

Question 1

what is homogeneous equilibrium?

Answer 1

reactions in which all components are in the same phase (liquid, gas, solid)

Question 2

what is heterogeneous equilibrium?

Answer 2

reactions in which components are in different phases (liquid + solid)

Question 2

what is dynamic equilibrium?

Answer 2

a state which occurs after a reverse reaction when concentrations and product/reactant ratios become constant and reverse/forward reactions occur at the same rate

Question 2

what is an open system?

Answer 2

a reaction vessel which does not have a lid, allowing reactants or products to be lost to the atmosphere

Question 3

what is a closed system?

Answer 3

a reaction vessel that is closed off or has a lid, meaning reactants and products aren’t lost to the atmosphere

Question 4

what is activation energy?

Answer 4

the minimum amount of energy required in a collision for a reaction to occur

Question 5

what is enthalpy?

Answer 5

the energy stored within chemical substances, referred to as its chemical or heat content

Question 6

what is a forward reaction?

Answer 6

the reaction between reactants to form products

Question 7

what is a reverse reaction?

Answer 7

the backwards reaction in which the products react to reform the reactants