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Physics

Problems

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Problems

11.1 Temperature and Thermal Energy

14.

What is 35.0 °F in kelvins?

  1. 1.67 K
  2. 35.0 K
  3. -271.5 K
  4. 274.8 K
15.

Design a temperature scale where the freezing point of water is 0 degrees and its boiling point is 70 degrees. What would be the room temperature on this scale?

  1. If room temperature is 25.0 °C, the temperature on the new scale will be 17.5 °.
  2. If room temperature is 25.0 °C, the temperature on the new scale will be 25.0°.
  3. If the room temperature is 25.0 °C, the temperature on the new scale will be 35.7°.
  4. If the room temperature is 25.0 °C, the temperature on the new scale will be 50.0°.

11.2 Heat, Specific Heat, and Heat Transfer

16.

A certain quantity of water is given 4.0 kJ of heat. This raises its temperature by 30.0 °F. What is the mass of the water in grams?

  1. 5.7 g
  2. 570 g
  3. 5700 g
  4. 57 g
17.

5290 J of heat is given to 0.500 kg water at 15.00 °C. What will its final temperature be?

  1. 15.25° C
  2. 12.47 ° C
  3. 40.3° C
  4. 17.53° C

11.3 Phase Change and Latent Heat

18.

How much energy would it take to heat 1.00 kg of ice at 0 °C to water at 15.0 °C?

  1. 271 kJ
  2. 334 kJ
  3. 62.8 kJ
  4. 397 kJ
19.

Ice cubes are used to chill a soda with a mass msoda = 0.300 kg at 15.0 °C. The ice is at 0 °C, and the total mass of the ice cubes is 0.020 kg. Assume that the soda is kept in a foam container so that heat loss can be ignored, and that the soda has the same specific heat as water. Find the final temperature when all ice has melted.

  1. 19.02 °C
  2. 90.3 °C
  3. 0.11 °C
  4. 9.03 °C
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