Top answers

Chemistry
A Level

What is Gibbs free energy? How is it useful?

The Gibbs free energy of a process is a measure of how readily that process will proceed on its own - a negative value means that the reaction is spontaneous, a positive value means that it is not, and...

Answered by Murdo M. Chemistry tutor
8665 Views

What is Mass Spectrometry?

Mass spectrometry is a technique we use to analyse and determine the structure of compound. Generally, it works by injecting your compound into an ionisation chamber, ...

Answered by Sinead B. Chemistry tutor
3328 Views

Define the "standard enthalpy change of atomisation".

This is a standard definition question that is relatively common in A level papers.

 

51260 Views

What is the effect of temperature on K(equilibrium constant)?

For this question we need to consider the equation:

ΔStotal = ΔSsystem - ΔH/T

For and exothermic reaction, -ΔH/T is po...

Answered by Olivia P. Chemistry tutor
7602 Views

What is the relationship between K and ΔS total?

ΔStotal=RlnK

This equation means that if ΔStotal is large and positive then K is large (much greater than 1) and the position of equilibrium is well to the right (due to the equation ΔStotal =...

Answered by Olivia P. Chemistry tutor
14747 Views

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