Thermal Equilibrium
Physics ⇒ Heat and Thermodynamics
Thermal Equilibrium starts at 8 and continues till grade 12.
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See sample questions for grade 12
A 100 g piece of iron at 80°C is placed in 200 g of water at 25°C. If the final temperature is 30°C, calculate the specific heat capacity of iron. (Specific heat of water = 4.18 kJ/kg·K)
A 2 kg block of copper at 100°C is placed in 1 kg of water at 20°C. Assuming no heat loss to the surroundings, what is the final temperature when thermal equilibrium is reached? (Specific heat of copper = 0.39 kJ/kg·K, water = 4.18 kJ/kg·K)
A 500 g aluminum block at 60°C is placed in 200 g of water at 20°C. If no heat is lost to the surroundings, what is the final temperature? (Specific heat of aluminum = 0.9 kJ/kg·K, water = 4.18 kJ/kg·K)
A glass of water at 25°C is placed in a refrigerator at 5°C. What will happen to the temperature of the water over time?
A metal block at 80°C is placed in water at 20°C. After some time, both reach 30°C. Is the system in thermal equilibrium?
Describe a real-life example of thermal equilibrium.
Describe what happens to the temperature of two objects of different temperatures when they are brought into contact.
Explain why a thermometer can be used to measure the temperature of another object.
Explain why the Zeroth Law of Thermodynamics is fundamental for the construction of thermometers.
Explain why two objects with different masses can still reach the same final temperature when brought into thermal contact.
If object A is in thermal equilibrium with object B, and object B is in thermal equilibrium with object C, what can you say about the relationship between A and C?
State the Zeroth Law of Thermodynamics.
Two objects, A and B, are placed in contact. After some time, there is no net heat flow between them. What can you conclude about their temperatures?
What is meant by thermal equilibrium?
