Fluids/Gas: Heat

Practice Problems for Calorimetry:

Find the final situation (final temp and amounts of each final material) given the materials in each problem.

#1: 4 kg Ag @ 750 ºC and 4 kg ice @ 0 ºC (worked solution)

#2: 10 g steam @ 100 ºC and 50 g ice @ 0 ºC (worked solution)

#3: 1 g steam @ 100ºC and 50 g ice @ 0 ºC

#4: 100 g water @ 90ºC and 10 g ice @ -10 ºC

#5: 2 Liters soda (like water) @ 20ºC and 0.257 kg Al Mug @ 20 ºC and 0.12 kg ice @ -15 ºC

#6: 0.5 kg Copper @ 20ºC and 0.170 kg water @ 20 ºC and 0.250 kg Iron @ 85 ºC

More activities to check your understanding:

• T vs Q graph interpretation
• Plot a Temperature vs Heat Added graph for the following situations.
  • 0.4 kg of Aluminum beginning at 20ºC is heated until the Aluminum is completely melted
  • 1.2 kg of Aluminum beginning at 20ºC is heated until the Aluminum is completely melted
  • 0.4 kg of Aluminum beginning at 0ºC is heated until the Aluminum is completely melted
  • 0.4 kg of Aluminum beginning at 700ºC is heated until the Aluminum is completely melted
• Given a T vs Q graph, how would it be modified if:
  • A greater mass is used
  • The substance starts at a lower initial temperature
  • A different material is used
• Inverting Tube Activity