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Using the kinetic molecular theory,explain why air pressure inside a syringe increases if the volume decreases from 15.0 cm

In order to tackle this question a general understanding of the the Kinetic Molecular Theory is required. The theory is based on assumptions of the behaviour of Ideal gases which are: Ideal gases are made up...
ES
Answered by Emma S. • Physics tutor
22888 Views

What to look for in a source question

In an English Language GCSE paper, it is important that students keep to a strict time schedule so that short and consise points can be made. In source questions, there are a few marks available, but they ca...
AM
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In the food web shown: Heather -> Rabbit -> Fox, only a small percentage of the Sun’s energy captured by the heather is eventually incorporated into the body tissues of the fox. Explain what happens to the rest of the energy captured by the heather.

To get all FIVE marks for this question, there needs to be FIVE clear , balanced and detailed explanations. - Respiration releases energy. Some energy is lost in animals through waste materials. Some energy ...
CD
Answered by Chaitya D. • Biology tutor
9714 Views

What is a mole and why do we use it? (chemistry)

The mole is a concept that you'll see everywhere in chemistry, from GCSE through A level. Although this is the case, it can be very easy to lose sight of what it actually is and why we use it, as your teache...
CB
14193 Views

How does an optical fibre transfer light?

To understand how an optical fibre transfers light, we must first understand the concept of 'total internal reflection'. Whenever light is refracted from one medium to another, the refractive index of the se...
AS
Answered by Akshay S. • Physics tutor
2548 Views