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 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.
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?
Which law states that if two systems are each in thermal equilibrium with a third system, then they are in thermal equilibrium with each other? (1) Zeroth Law of Thermodynamics (2) First Law of Thermodynamics (3) Second Law of Thermodynamics (4) Third Law of Thermodynamics
Which of the following best describes thermal equilibrium? (1) Equal pressure (2) Equal temperature (3) Equal volume (4) Equal mass
Which of the following is a correct statement about thermal equilibrium? (1) It can only occur in isolated systems (2) It requires equal masses of the objects (3) It is independent of the materials involved (4) It requires equal temperatures
Which of the following is a direct consequence of the Zeroth Law of Thermodynamics? (1) Conservation of energy (2) Existence of temperature scales (3) Increase of entropy (4) Conservation of mass
Fill in the blank: In thermal equilibrium, the average kinetic energy of the particles in both systems is ________.
Fill in the blank: The ________ Law of Thermodynamics forms the basis for the concept of temperature.
Fill in the blank: The process of reaching thermal equilibrium is called ________.
Fill in the blank: When two bodies are in thermal equilibrium, there is ________ net transfer of heat between them.
True or False: If two bodies are in thermal equilibrium, they must be made of the same material.
True or False: If two objects are at the same temperature, they are in thermal equilibrium even if they are not in contact.
True or False: The concept of temperature is defined based on the Zeroth Law of Thermodynamics.
True or False: The Zeroth Law of Thermodynamics allows us to define temperature as a measurable property.
