Search our library of GCSE questions

Top answers

All subjects

GCSE

The reaction for the Haber process is shown below. N2(g) + 3H2(g) ⇌ 2NH3(g) What will be the effect of increasing the pressure on the amount of ammonia present at equilibrium? [1 mark]

Increase.
This question is looking at a reversible reaction - the reaction can occur both forwards and backwards.
Firstly to answer this question you need to appreciate that in a closed reacti...

Answered by Rebecca V. • Chemistry tutor

11199 Views

Given the points (6,6) and (10,8) calculate the gradient of the line passing through them and the point at which it intersects the y-axis?

To find the gradient use the formula:m = (y2-y1)/(x2-x1)Plug in values:m = (8-6)/(10-6) = 1/2Hence gradient = 1/2--Now using the equation for a line y = mx+c and point (10,8)8 = 1/2*10 + cc = 3Hence when ...

Answered by Gilad A. • Maths tutor

4045 Views

Describe and explain three adaptations of succulent plants that allow them to live in hot and dry conditions.

There are many to choose from here but we'll take the two most important. Many succulents such as cacti have needles instead of leaves. This reduces the amount of water lost via transpiration meaning that...

Answered by Henry P. • Maths tutor

5865 Views

What is the difference between 'verpassen' and 'vermissen'?

This can be a little confusing, as both verbs translate as 'to miss'. When wanting to say in German that you missed the bus, you might instinctively use 'vermissen', as it sounds more similar to ...

Answered by Tatyana B. • German tutor

11128 Views