Calorimetry Quiz
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5 questions, one answer each
Each answer is checked as you go, with why.
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1. What does calorimetry measure?
- A. The colour of a reaction
- B. The energy transferred during a reaction
- C. The pH of a reaction
- D. The rate of a reaction
2. What are the units of energy in calorimetry calculations?
- A. Metres
- B. Joules
- C. Moles
- D. Newtons
3. Which equation is used in simple calorimetry?
- A. Q = mcΔT
- B. pH = -log[H+]
- C. n = m/Mr
- D. V = n x 24
4. Why is an insulated container used for reactions in solution?
- A. To speed up the reaction
- B. To reduce energy loss to the surroundings and give a more accurate temperature reading
- C. To increase the reaction's mass
- D. To prevent a colour change
5. A student measures the energy released by burning ethanol using an open metal can of water. Their calculated energy value is lower than the data book value for ethanol. What is the most likely reason?
- A. Ethanol released more energy than expected
- B. Energy was lost to the surroundings during heating
- C. The water evaporated completely
- D. The thermometer over-read the final temperature