periodic table and energy

Question 1

first ionisation energy

Answer 1

energy needed to remove 1 mol of electrons from 1 mol of gaseous atoms

Question 2

disproportination

Answer 2

oxidation and reduction of the same element

Question 3

displacement

Answer 3

the more reactive element will displace the less reactive element from its compound

Question 4

activation energy

Answer 4

energy needed to start a reaction

Question 5

catalyst

Answer 5

offers a different pathway to a lower activation energy

Question 6

bond enthalpy

Answer 6

the enthalpy change where 1 mols of bonds are broken

Question 7

enthalpy change of formation

Answer 7

enthalpy change that takes place when 1 mol of a compound is formed from its constituent elements under standard conditions

Question 8

enthalpy change of combustion

Answer 8

enthalpy change that takes place when 1 mol of a substance reactscompletely with oxygen under standard conditions

Question 9

standard conditions

Answer 9

298 Kelvin / 25 degrees

1 Atmospheric pressure / 101 KPa / 100 KPa