Reduced pressure
What Reduced pressure means in Chemistry A-Level, as defined for OCR.
Definition of Reduced pressure
Check what you remember
Read the wording for your board, then hide it and explain Reduced pressure in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Pressure below the filter that is lower than atmospheric pressure, which draws liquid through the filter faster than gravity filtration.
Topics that use Reduced pressure
Related terms
- Basicity of amines
- Carbonyl group distinction
- Comparison with literature data
- Distillation
- Distillation apparatus
- Filtration under reduced pressure
- Functional group identification
- Functional group recognition
Using Reduced pressure in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Chemistry questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge