Top answers

The formation of ammonia is an equilibrium reaction; N2(g) + 3 H2(g) <--> 2 NH3(g) the enthalpy of this reaction is negative. What can be done to increase the yield of products?

Using le Chatelier's principle that when a change occurs in a system at equilibrium the system will counteract the change to establish a new equilibrium we can answer this question. If the pressure is increa...
TD
4735 Views

a)Work out the total surface area of this cuboid (3cm x 4cm x 2cm). b) The cuboid has density 7g/cm^3, what is the mass of the cuboid?

a) The surface area of a 3 dimensional shape is the sum total of the area of each side of the shape. This cuboid is 3x4x2, and so it has 2 sides with area 3x4 = 12, 2 sides with area 4x2 = 8, and 2 sides wit...
LJ
Answered by Luke J. • Maths tutor
7914 Views

Factorise fully the following expression: 2a^(2)b + 6ab^(2)

Factorise fully the following expression: 2a 2 b + 6ab 2 First, find the common terms by treating, 2a 2 b and 6ab 2 as separate objects. We see common terms of... 2, a, and b We notice that 2ab a = 2a 2 b an...
MW
Answered by Michael W. • Maths tutor
7246 Views

Describe the process of DNA replication in a Eukaryotic cell. (6 Marks)

Firstly, the double stranded helical structure of the DNA is unwound by an enzyme called DNA helicase. This process of separation requires the breaking of the hydrogen bonds which link the base pairs. After ...
CO
Answered by Callum O. • Biology tutor
3712 Views

Explain how the use of an ice bath can help reduce DOMS

Define DOMS: Delayed onset of muscle soreness occurs after high intensity exercise.Most strongly 24hrs to 72hrs after exercise. DOMS occurs due to small scale damage and tears in the muscle fibres. - It is o...
EP
12441 Views