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Questions and Answers
Which of the following represents the correct formula to calculate the heat energy required to vaporize a given mass of water?
Which of the following represents the correct formula to calculate the heat energy required to vaporize a given mass of water?
- Q = mL - mCΔT
- Q = mCΔT + mL
- Q = mL + mCΔT (correct)
- Q = mL/ΔT + mC
What is the total heat energy required to vaporize 50g of water initially at 80°C?
What is the total heat energy required to vaporize 50g of water initially at 80°C?
- 226000J
- 97480J
- 224260J (correct)
- 117600J
If the mass of water is doubled, what will be the new total heat energy required to vaporize it initially at 80°C?
If the mass of water is doubled, what will be the new total heat energy required to vaporize it initially at 80°C?
- 896000J
- 224260J
- 448520J (correct)
- 112130J
