A-LEVEL EDEXCEL PAPER 1// Advanced
Inorganic and Physical Chemistry exam with
Q&A
Atom economy - CORRECT ANSWER (Molecular mass of desired products/ Molecular
mass of all products) x 100
Hess's Law - CORRECT ANSWER The energy change of a reaction from reactants to
products is equal regardless of route taken
Haber process equation - CORRECT ANSWER N2 + 3H2 = 2NH3
Haber process conditions - CORRECT ANSWER 450 degrees, 200 atm, iron catalyst
partial pressure - CORRECT ANSWER Mole fraction x total pressure
Mole fraction - CORRECT ANSWER Mole of element / molecule
Lattice energy - CORRECT ANSWER Energy change when one mole of an ionic solid
is formed from its gaseous ions
Enthalpy change of atomisation - CORRECT ANSWER Energy change to produce one
mole of gaseous atoms of the element
Electron affinity - CORRECT ANSWER Energy change when each atom in one mole of
gaseous atoms gains one electrons to form one mole of gaseous ions with a single
negative charge.
Enthalpy change of solution - CORRECT ANSWER Energy change when one mole of
compound dissolves to form a solution of infinite dilution
Enthalpy change of hydration - CORRECT ANSWER Energy change when one mole of
gaseous ions dissolve in water to give an infinitely dilute solution.
Salt bridge - CORRECT ANSWER Potassium nitrate
Mass of an electron - CORRECT ANSWER 1/1836
Isotopes - CORRECT ANSWER Atoms with the same number of protons, different
number of neutrons
Inorganic and Physical Chemistry exam with
Q&A
Atom economy - CORRECT ANSWER (Molecular mass of desired products/ Molecular
mass of all products) x 100
Hess's Law - CORRECT ANSWER The energy change of a reaction from reactants to
products is equal regardless of route taken
Haber process equation - CORRECT ANSWER N2 + 3H2 = 2NH3
Haber process conditions - CORRECT ANSWER 450 degrees, 200 atm, iron catalyst
partial pressure - CORRECT ANSWER Mole fraction x total pressure
Mole fraction - CORRECT ANSWER Mole of element / molecule
Lattice energy - CORRECT ANSWER Energy change when one mole of an ionic solid
is formed from its gaseous ions
Enthalpy change of atomisation - CORRECT ANSWER Energy change to produce one
mole of gaseous atoms of the element
Electron affinity - CORRECT ANSWER Energy change when each atom in one mole of
gaseous atoms gains one electrons to form one mole of gaseous ions with a single
negative charge.
Enthalpy change of solution - CORRECT ANSWER Energy change when one mole of
compound dissolves to form a solution of infinite dilution
Enthalpy change of hydration - CORRECT ANSWER Energy change when one mole of
gaseous ions dissolve in water to give an infinitely dilute solution.
Salt bridge - CORRECT ANSWER Potassium nitrate
Mass of an electron - CORRECT ANSWER 1/1836
Isotopes - CORRECT ANSWER Atoms with the same number of protons, different
number of neutrons
