English National Curriculum - Science

Volume of gases

Mission Objectives

State that one mole of any gas occupies 24 dm³ at room temperature and pressure

Calculate the volume of a gas or the number of moles using mass, relative formula mass and the 24 dm³ molar volume

Determine volumes of gaseous reactants or products from a balanced equation and rearrange equations to find unknown values

Sign up to access this content
Rocket Words Quiz

Rocket Words Quiz

See if you know all the meanings of the rocket words

Assessment Quiz

Assessment Quiz

Test your knowledge of this lesson

Word Search Game

Word Search Game

Find all the rocket words in the grid

Lesson Resources

Lesson Plan

View and print the lesson plan

View

Downloads

Save files related to this lesson

Keywords

Words and meanings to learn

Avagadro constant

the number of particles in one mole of a substance, equal to 6.02 × 10²³

molar volume

the volume occupied by one mole of a gas at room temperature and pressure (RTP), which is 24 dm³ for most gases at 20°C and 1 atm

relative formula mass (Mr)

the sum of the relative atomic masses of all the atoms in a chemical formula

mole

the amount of substance that contains 6.02 × 10²³ particles, such as atoms, molecules or ions

volume of gas

the amount of space that a gas occupies, usually measured in dm³ or cm³

This lesson has been written by

Sarah Mintey MBE

Sarah is a former headteacher and charity CEO who founded Developing Experts in October 2015 with the goal to create a fit-for-purpose curriculum for schools. The company has created a science curriculum for children ages 4-16 which is delivered through sequenced lessons mapped against the National Curriculum in biology, chemistry, and physics. Developing Expert's innovative approach to learning has already been road-tested and voted 'best EdTech product in Europe', winning Tech Nation’s Rising Stars earlier in 2019 and a place on Google for Startups Immersion program 2020. In 2022 Developing Experts won the BETT Awards for Best Classroom Resource - Teaching Aid. Sarah is a 'LDC Top 50 Most Ambitious Business Leader' 2022. In October 2022 Developing Experts joined Tech Nation's Upscale 8.0 programme.

Sarah is delighted to be working with over 6500 UK schools and clients such as the Royal Horticulture Society, Network Rail, Rolls Royce, BEIS, National Nuclear Labs, Anglian Water and the Ministry of Defence.

Sarah was awarded an MBE for her services to tech and education in 2020. 

Samantha Batch

Samantha is a dedicated and accomplished science educator with over 15 years of leadership experience in the field, coupled with a strong background in scientific analysis. She has a proven track record of strategically managing educational departments, driving operational efficiencies, and nurturing collaborative relationships with stakeholders. 

Samantha previously served as the Head of Chemistry and Sixth Form Tutor, Ilkley Grammar School, Ilkley with extensive Key Stage 4 and 5 teaching experience and leadership. In addition to her teaching and leadership roles, she is also an examiner for AQA, providing her with valuable insight into assessment standards and exam specifications.

In her spare time, Samantha enjoys playing the accordion with her local orchestra and has recently taken up cricket, where she's enthusiastically honing her skills both on and off the pitch!

Required Resources

 Scientific calculator 

These links are being provided as a convenience and for informational purposes only; they do not constitute an endorsement or an approval from Developing Experts of any of the products, services or opinions of the corporation or organisation or individual.

Developing Experts bears no responsibility for the accuracy, legality or content of the external site or for that of subsequent links. Contact the external site for answers to questions regarding its content.

You will be redirected to:

Expert film

Sign up to access this content

This lesson is only available to users with an active subscription.

Mission assignment film

Sign up to access this content

This lesson is only available to users with an active subscription.

Stay connected

Join our newsletter to stay up to date on features and releases

Address
Developing Experts Limited
Exchange Street Buildings
35-37 Exchange Street
Norwich
NR2 1DP
UK

Phone
01603 273515

Email
[email protected]

Copyright 2025 Developing Experts, All rights reserved.