AQA A Level Chemistry 3, 1, 8 – Thermodynamics Exam with Questions and
Answers – 100% Solved
An ENDOthermic reaction with an DECREASE in entropy is... - ✔✔✔-Never feasible.
An ENDOthermic reaction with an INCREASE in entropy is... - ✔✔✔-Feasible ABOVE a critical
temperature.
An EXOthermic reaction with an DECREASE in entropy is... - ✔✔✔-Feasible BELOW a critical
temperature.
An EXOthermic reaction with an INCREASE in entropy is... - ✔✔✔-Always feasible.
As charge of ANION (-) increases, covalent character... - ✔✔✔-Increases.
As charge of CATION (+) increases, covalent character... - ✔✔✔-Increases.
As ionic radius of ANION (+) increases, covalent character... - ✔✔✔-Increases.
As ionic radius of CATION (+) increases, covalent character... - ✔✔✔-Decreases.
As the charge of ions increases, the lattice enthalpy... - ✔✔✔-Increases.
As the ionic radius increases, the lattice enthalpy... - ✔✔✔-Decreases.
At 0K the Gibb's free energy equation is - ✔✔✔-ΔG = ΔH
At the critical temperature, the Gibb's free energy equation is - ✔✔✔-Tc = ΔH
ΔS
, AQA A Level Chemistry 3, 1, 8 – Thermodynamics Exam with Questions and
Answers – 100% Solved
Endothermic reactions are _________ likely to happen. - ✔✔✔-Less
Enthalpy change of atomisation - ✔✔✔-The enthalpy change that accompanies the formation
of 1 mole of gaseous atoms from the element in its standard state.
Enthalpy change of combustion - ✔✔✔-The enthalpy change when 1 mole of a substance is
burned completely in oxygen.
Enthalpy change of formation - ✔✔✔-The enthalpy change when 1 mole of a compound is
formed from its constituent elements under standard conditions, with all reactants and
products in their standard states.
Enthalpy of hydration - ✔✔✔-The enthalpy change when 1 mole of gaseous ions dissolves
completely in water.
Enthalpy of solution - ✔✔✔-The enthalpy change when 1 mole of an ionic solid dissolves in
enough solvent to ensure that the dissolved ions are well separated and do not interact with
one another.
Enthalpy of sublimation - ✔✔✔-The enthalpy change when 1 mole of a solid sublimes to form 1
mole of a gas.
Enthalpy of vaporisation - ✔✔✔-The enthalpy change when 1 mole of a liquid evaporates to
form 1 mole of a gas.
Exothermic reactions are _________ likely to happen. - ✔✔✔-More
Answers – 100% Solved
An ENDOthermic reaction with an DECREASE in entropy is... - ✔✔✔-Never feasible.
An ENDOthermic reaction with an INCREASE in entropy is... - ✔✔✔-Feasible ABOVE a critical
temperature.
An EXOthermic reaction with an DECREASE in entropy is... - ✔✔✔-Feasible BELOW a critical
temperature.
An EXOthermic reaction with an INCREASE in entropy is... - ✔✔✔-Always feasible.
As charge of ANION (-) increases, covalent character... - ✔✔✔-Increases.
As charge of CATION (+) increases, covalent character... - ✔✔✔-Increases.
As ionic radius of ANION (+) increases, covalent character... - ✔✔✔-Increases.
As ionic radius of CATION (+) increases, covalent character... - ✔✔✔-Decreases.
As the charge of ions increases, the lattice enthalpy... - ✔✔✔-Increases.
As the ionic radius increases, the lattice enthalpy... - ✔✔✔-Decreases.
At 0K the Gibb's free energy equation is - ✔✔✔-ΔG = ΔH
At the critical temperature, the Gibb's free energy equation is - ✔✔✔-Tc = ΔH
ΔS
, AQA A Level Chemistry 3, 1, 8 – Thermodynamics Exam with Questions and
Answers – 100% Solved
Endothermic reactions are _________ likely to happen. - ✔✔✔-Less
Enthalpy change of atomisation - ✔✔✔-The enthalpy change that accompanies the formation
of 1 mole of gaseous atoms from the element in its standard state.
Enthalpy change of combustion - ✔✔✔-The enthalpy change when 1 mole of a substance is
burned completely in oxygen.
Enthalpy change of formation - ✔✔✔-The enthalpy change when 1 mole of a compound is
formed from its constituent elements under standard conditions, with all reactants and
products in their standard states.
Enthalpy of hydration - ✔✔✔-The enthalpy change when 1 mole of gaseous ions dissolves
completely in water.
Enthalpy of solution - ✔✔✔-The enthalpy change when 1 mole of an ionic solid dissolves in
enough solvent to ensure that the dissolved ions are well separated and do not interact with
one another.
Enthalpy of sublimation - ✔✔✔-The enthalpy change when 1 mole of a solid sublimes to form 1
mole of a gas.
Enthalpy of vaporisation - ✔✔✔-The enthalpy change when 1 mole of a liquid evaporates to
form 1 mole of a gas.
Exothermic reactions are _________ likely to happen. - ✔✔✔-More
