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Describe the effect in terms of particles and collisions the effect of increasing temperature on rate of reaction?

The rate of reaction will increase. Increased temperature causes the particles to move faster, increasing the number of collisions between the particles. More particles have energy exceeding the activation e...
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Answered by Luke R. • Chemistry tutor
3571 Views

A circular table top has diameter 140 cm. Calculate the area of the table top in cm² , giving your answer as a multiple of π.

Area of a circle = π r² r = (1/2) d = (1/2) * 140 = 70 area = π * (70)² = 4900 π cm²
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Answered by Sulem M. • Maths tutor
3678 Views

How do I effectively close-read a passage from a novel studied in the exam? - GCSE English Literature

Student should read the passage once over to try and place it within the context of the novel. Highlight key terms in the question, e.g. a question asking how Steinbeck presents the relationship between Geor...
AH
4912 Views

What is radioactivity?

Imagine a water ballon which is slowly filling up with water. The ballon is fine and intact when there's not much water in it but what happens when we fill it so much that it can no long hold all the water? ...
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Answered by Eoin B. • Physics tutor
3198 Views

Explain the term 'direct democracy' (5)

Direct democracy involves people power, or the self-government of people, contrasting to a representative democracy by which representatives are elected in order to voice the opinions and interests of citize...
AR
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