Physical Chemistry

Question 1

Activation energy

Answer 1

Minimum energy needed to lead to successful collisions in the reaction

Question 2

Standard enthalpy change of reaction

Answer 2

Enthalpy change for a reaction per mole of a stated reactant

Question 3

Standard enthalpy change of formation

Answer 3

Enthalpy change when one mole of a compound is formed from its elements under standard conditions with everything in standard states

Question 4

Standard enthalpy change of combustion

Answer 4

Enthalpy change for combustion of one mole of a substance in excess oxygen under standard conditions with everything in their standard states

Question 5

Standard enthalpy change of neutralision

Answer 5

Enthalpy change for the formation of one mole of water from H+ and OH-

Question 6

Average bond enthalpy

Answer 6

The energy required to break one mole of bonds in gaseous molecules

Question 7

Orbital

Answer 7

Volume of space that can hold up to two electrons with opposite spins

Question 8

Dative bond

Answer 8

Where a bonding atom donates a lone pair to an electron deficient species

Question 9

Electronegativity

Answer 9

The ability of an atom to attract a bonding pair of electrons in a covalent bond