Top answers

Chemistry
GCSE

How do perturbations to a system affect the equilibrium position of a reaction?

If a perturbation is applied to a system in dynamic equilbirium, the position of equilbirium will shift to favour the reaction which minimises the effect of the perturbation. If the forward reaction is ex...

Answered by Gwyndaf O. Chemistry tutor
4325 Views

In fractional distillation the shorter hydrocarbons have lower boiling points and distil off first. Why?

Boiling points are determined by the interactions between the individual hydrocarbon molecules. The weaker the interactions, the ...

Answered by Hannah B. Chemistry tutor
4201 Views

Why do acids have low pHs and alkaline solutions have high pHs?

The pH scale is a measure of how many H+ ions...

Answered by Hannah B. Chemistry tutor
3078 Views

What is the effect of increasing the temperature on the rate of reaction?

As the temperature has increased the particles have more kinetic energy which causes them to move more quickly so there are more collisions per unit time. Also, due to their increased kinetic energy, more...

Answered by Isabelle J. Chemistry tutor
2313 Views

What factors influence the rate of a reaction?

There are four factors to consider. 

  1. Tempearture 

  2. Surface Area

  3. Concenration/ Pressure 

  4. Catalyst

These factors all ...

Answered by Alexis A. Chemistry tutor
2257 Views

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