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- 1. Multiple ChoiceWhen water is heated from 10°C to 15°C What is the change in temperature?10 °C5 °C15 °C25 °C
- 2. Multiple ChoiceWhen a piece of aluminum foil is taken out of the oven and cools from 100°C to 50°C.
What is the change in temperature?50°C0°C100°C150°C - 3. Multiple ChoiceWhen a baked potato at 10 °C is heated to 180 °C in the oven its temperature change is170 °C10 °C180 °C190 °C
- 4. Multiple ChoiceIf I have 2 blocks of Aluminium (one of 1kg and one of 10 kg) and heat them up.
Which one heats up the fastest.1 kg10 kgThey both heat up at the same speedThey don't heat up. - 5. Multiple ChoiceIf I heat up 2 pans of water one has 100 mL in it and one has 1000mL. Which one heats up the fastest?100 mL1000 mLThey both heat up at the same speedThey cool down.
- 6. Multiple ChoiceHow much energy is required to heat up 12kg of copper from 10 °C to 120 °C. The specific heat capacity is 390 J/kg °C.46800 J561600 J514800 J
- 7. Multiple ChoiceHow many Joules of energy are required to make 100 grams of ice at 0 οC completely melt? The specific latent heat of fusion of ice is 334000 J/kg200 J400 J33,400 J2,000,000 J
- 8. Multiple ChoiceCalculate the amount of energy required to melt 35.0 grams of ice.
(not in sig figs) Hf = 80.0 cal/g, Hv = 560.0 cal/g, SH = 1.00 cal/g ºC19,600 cal35.0 cal2,800 cal1,568,000 cal - 9. Multiple ChoiceHow many calories are required to boil 75 grams of water?
(not in sig figs) Hf = 80.0 cal/g, Hv = 560.0 cal/g, SH = 1.00 cal/g ºC6,000 cal3,360,000 cal42,000 cal7.46 cal - 10. Multiple ChoiceIf a 8.50g ice cube at -10o C sits out on the counter, completely melts, and then warms to room temperature (25o C) how much energy did the ice cube absorb? Use C = 2.108 J/goC for ice, C = 4.184 J/goC for water, and Hf = 334 J/g.179.18 J2839 J889.1 J3907.3 J
- 11. Multiple ChoiceHow much energy is required to completely boil away 150g of 10o C water? Use C = 4.184 J/goC for water, and Hv = 2260 J/g.56,484 J339,000 J395,484 J385,484 J
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