Thermal Equilibrium
Trending Questions
What is the thermal equilibrium example?
Heat is a energy which flows from hot body to a cold body.
True
False
Water can exist in all three states at a temperature of:
0°C
100°C
room temperature (25°C)
all temperature
Write the energy transformation that takes place in the following :
Electric bulb
Deep pond of water has its top layer frozen during winter. State the expected temperature of water layer (i) just in contact with ice, (ii) at the bottom of pond.
Deep pond of water has its top layer frozen during winter. State the expected temperature of water layer just in contact with ice
00C
100C
-40C
40C
- True
- False
What happen to heat transfer when thermal equilibrium is reached?
Heat is the energy transferred between two bodies in contact due to the difference in their ______________.
Use the following information to answer the next question.
Four pins (I, II, III, and IV) are fixed to a metallic rod with the help of wax. The rod is heated at one end.
Which of the following pins would drop first?
I
II
III
IV
The following figure shows the modern energy efficient appliances, similarly which of the following options shows efficient use of energy?
Furnaces in industry burning more fuel
Incandescent light bulbs
Both A and C
Insulating home
Explain the term conduction.
A cold body is placed between two hot bodies. Which of the following will be the correct direction of heat flow?
From cold body to either of the hot bodies
From both hot bodies to the cold body kept in the middle
From the hot body on right to the cold body and then to the hot body in left
From the hot body on left to the cold body and then to the hot body in right
- Heat energy is converted to electrical energy
- Electrical energy is converted to heat energy.
- Chemical energy is converted to heat energy
- Chemical energy is converted to electrical energy
Which of the following statements is incorrect?
With cooling, the temperature decreases
Temperature is the measure of degree of hotness of a body
Heat always flows from a low temperature to high temperature body
With heating, the temperature increases
Use the following information to answer the next question.
A metallic ball at 40°C is dropped in a vessel containing water at 20°C
Which of the following statements corresponding to the above statement is correct?
There will be an increase in temperature of both the ball and water
There will be a decrease in temperature of both the ball and water
Heat will flow from the ball to the water
Heat will flow from the water to the ball
Two metallic objects A and B are brought into contact but there is no heat transfer between them. What could be the possible reason for this?
Temperature of A > Temperature of B
Temperature of B > Temperature of A
Can't be determined
Temperature of A = Temperature of B
The energy supply being cut-off, an electric heater element cools down to the temperature of its surroundings, but it will not cool further because:
Supply is cut off
It is made of metal
Surroundings are radiating
Element & surroundings have same temp
- 34 N
- 24 N
- 64 N
- 14 N
One litre of water equals
1 kg of water at all temperatures
1 kg of water at 4oC
1 kg of water at 10oC
1 kg of water at 0oC
A metallic wire gets heated up with current is passed through it.
True
False
On which of the following does the heat capacity of a body depend?
The heat input
The mass of the body
The initial temperature
The material it is made up of
When a liquid starts to boil during heating, its temperature
Fish survive in ponds even when the atmospheric temperature is below 0oC.