Enthalpy Change Quiz

What is the enthalpy change when one mole of a substance is formed from its constituent elements with all substances in their standard states?

• Enthalpy of combustion (ΔH°c)

• Enthalpy of neutralisation (ΔH°neut)

• Enthalpy of formation (ΔH°f)

• Enthalpy of atomisation (ΔH°at)

Which enthalpy change is exothermic and involves the complete combustion of one mole of a substance with all substances in standard states?

• Enthalpy of formation (ΔH°f)

• Enthalpy of combustion (ΔH°c)

• Enthalpy of neutralisation (ΔH°neut)

• Enthalpy of atomisation (ΔH°at)

What is the enthalpy change when one mole of water is formed in a reaction between an acid and an alkali under standard conditions?

• Enthalpy of formation (ΔH°f)

• Enthalpy of combustion (ΔH°c)

• Enthalpy of neutralisation (ΔH°neut)

• Enthalpy of atomisation (ΔH°at)

Which enthalpy change involves the energy change when each atom in one mole of gaseous atoms loses one electron to form one mole of gaseous 1+ ions?

• First ionisation enthalpy (ΔH°i1)

• Second ionisation enthalpy (ΔH°i2)

• Electron affinity (ΔH°ea)

• Hydration enthalpy (ΔH°hyd)

What is the enthalpy change when one mole of gaseous ions becomes hydrated (dissolved in water)?

• Enthalpy of solution (ΔH°sol)

• Hydration enthalpy (ΔH°hyd)

• Enthalpy of atomisation (ΔH°at)

• Bond dissociation enthalpy (ΔH°diss)

Which enthalpy change is defined as the enthalpy change when one mole of a solid ionic compound is broken up into its constituent ions in the gas phase?

• Lattice enthalpy of formation (ΔH°LEF)

• Lattice enthalpy of dissociation (ΔH°LED)

• Enthalpy of vaporisation (ΔH°vap)

• Enthalpy of fusion (ΔH°fus)

What is the enthalpy change when one mole of a liquid is turned into a gas?

• Enthalpy of vaporisation (ΔH°vap)

• Enthalpy of fusion (ΔH°fus)

• Enthalpy of solution (ΔH°sol)

• Enthalpy of atomisation (ΔH°at)

Which enthalpy change involves the energy change when one mole of gaseous 1- ions is formed from one mole of gaseous atoms?

• First ionisation enthalpy (ΔH°i1)

• Second ionisation enthalpy (ΔH°i2)

• First electron affinity (ΔH°ea1)

• Second electron affinity (ΔH°ea2)

What is the enthalpy change when one mole of a solid ionic compound is formed from its constituent ions in the gas phase?

• Lattice enthalpy of formation (ΔH°LEF)

• Lattice enthalpy of dissociation (ΔH°LED)

• Enthalpy of vaporisation (ΔH°vap)

• Enthalpy of fusion (ΔH°fus)

what state are ions in before lattice enthalpy of formation

• solid

• liquid

• gas

• aquesou