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- 1. Multiple Choice
What happens when ice melts?
The average kinetic energy of the particles in ice increases.
The average potential energy of the particles in ice remains constant.
The average thermal energy of the particles in ice remains constant.
The average internal energy of the ice increases.
- 2. Multiple Choice
Liquid X and Y having the same mass and initial temperature are heated up by two identical heaters. The temperature of liquid X increases faster than liquid Y.
Assuming no heat is lost to the surroundings , which statement best explains the observation?
Liquid X has a higher specific heat capacity than liquid Y
Liquid X has lower melting point than liquid Y
Liquid X has lower specific heat capacity than liquid Y
Liquid X has a lower density than liquid Y
- 3. Multiple Choice
0.4
320
400
4000
- 4. Multiple Choice
An experiment is conducted to find out the specific heat capacity of an unknown liquid X. The following data are obtained.
Initial Temperature of X: 25°C
Final Temperature of X: 96°C
Mass of substance X: 1.8 kg
Electrical power rating of heater: 800 W
Duration of heating: 5 mins
What is the specific heat capacity of liquid X?
1.88 J/(kg °C)
31.3 J/(kg °C)
1880 J/(kg °C)
1390 J/(kg °C)
- 5. Multiple Choice
Four different liquids W, X, Y and Z are originally at room temperature. They are all being heated up using four identical heaters. The temperature-time graph of the 4 liquids are being plotted as shown.
Which of the following ranks the value of the specific heat capacities of the four liquids in increasing order?
Z, Y, X, W
W, X, Y, Z
Z, X, W, Y
Y, W, X, Z
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