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

Question 1. Why does a spoonful of granulated sugar dissolve more quickly than a sugar lump of equal mass? It has greater surface area. People stir their drinks more when they use granulated sugar. It raises the temperature of the liquid. The particles can move faster.

Question 2. Which conditions would give the slowest reaction? A 5°C starch solution with a 20% amylase solution. A 30°C starch solution with a 5% amylase solution. A 30°C starch solution with a 20% amylase solution. A 5°C starch solution with a 5% amylase solution.

Question 3. Why does increasing surface area increase the rate of reaction? There's more chance of particles colliding because they're moving faster. There's more chance of particles colliding because there's more of them in a given volume. There's more chance of particles colliding because there's a place for them to meet. There's more chance of particles colliding because there's a greater area for them to come into contact.

Question 4. Why does increasing temperature increase the rate of reaction? There's more chance of particles colliding because there's a place for them to meet. There's more chance of particles colliding because there's a greater area for them to come into contact. There's more chance of particles colliding because they're moving faster. There's more chance of particles colliding because there's more of them in a given volume.

Question 5. Why does adding a catalyst increase the rate of reaction? There's more chance of particles colliding because there's a place for them to meet. There's more chance of particles colliding because there's more of them in a given volume. There's more chance of particles colliding because there's a greater area for them to come into contact. There's more chance of particles colliding because they're moving faster.

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