Define the "standard enthalpy change of atomisation".
This is a standard definition question that is relatively common in A level papers.
The standar molar enthalpy change of atomisation is defined as the enthalpy change when 1 mol of an element in its standard state is atomised to produce 1 mol of gaseous atoms.
By "standard state" we mean the state the element is naturally found, for example for Chlorine it is Cl2(g) and for Sodium it is Na(s).
DG
Related Chemistry A Level answers
All answers ▸In terms of reaction mechanisms, what exactly is the rate-determining step?
How do i know what the major and minor products of the reaction between Hydrogen Bromide and Propene would be?
Work out the number of electrons, protons and neutrons in Silicon 29 isotope.
give a possible reaction mechanism for the conversion of a haloalkane to alcohol