Snapquiz - Rate of Reaction

This is the Snapquiz on Rate of Reaction. Click here or use the embedded video if you haven't watched the lesson yet.


Question 1. Which is the lowest rate of reaction?

20g per minute.
1000g per hour
0.3g per second.
1.08kg per hour.


Question 2. When calculating the rate of change in chemistry, which variable could you be observing change?

Temperature of solution.
Amount of product formed.
Odour.
Time taken.


Question 3. 270g of calcium carbonate is heated to 900°C for 30 minutes until it has completely thermally decomposed. What is the rate of reaction?

9g per minute.
0.033 minutes per °C.
0.3g per °C.
0.11 minutes per gram.


Question 4. Why is a high rate of reaction usually more desirable to industrial chemists?

Producing more product in a given time is usually safer.
Producing more product in a given time is usually cheaper.
Producing more product in a given time is usually easier.
Producing more product in a given time is usually purer.


Question 5. Which is the highest rate of reaction?

0.1g per second.
300g per hour.
0.36kg per hour.
7g per minute.


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