371345
The freezer in a refrigerator is located at the top section so that
1 The entire chamber of the refrigerator is cooled quickly due to convection
2 The motor is not heated
3 The heat gained from the environment is high
4 The heat gained from the environment is low.
Explanation:
Conceptual Question
KCET - 2006
PHXI12:THERMODYNAMICS
371346
Statement A : A refrigerator transfers heat from a lower temperature to a higher temperature. Statement B : Heat cannot flow naturally from a lower temperature to a higher temperature.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Refrigerator uses the elctrical energy to transfer heat from a lower temperature to a higher temperature. So option (3) is correct.
PHXI12:THERMODYNAMICS
371347
A refrigerator works between \(4^\circ C\) and \(30^\circ C\). It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigerated space constant. The power required is
The working of an air conditioner is similar to the working of a refrigerator. An air conditioner is similar to the heat from the room, does some work and rejects the heat to the surroundings. As air conditioner is put in the middle of the room then due to continuous, external work the room will become slightly warmer.
PHXI12:THERMODYNAMICS
371349
Assertion : A room can be cooled by opening the door of a refrigerator in a closed room. Reason : Heat flows from lower temperature (refrigerator) to higher temperature (room).
1 Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Leaving the refrigerator door open causes more heat expulsion than absorption, warming the room (as per) the second law of thermodynamics. Assertion is false. Heat naturally moves from a lower-temperature body to a higher-temperature one, causing the room temperature to rise due to work done by compressor. Reason is true. So correct option is (4).
371345
The freezer in a refrigerator is located at the top section so that
1 The entire chamber of the refrigerator is cooled quickly due to convection
2 The motor is not heated
3 The heat gained from the environment is high
4 The heat gained from the environment is low.
Explanation:
Conceptual Question
KCET - 2006
PHXI12:THERMODYNAMICS
371346
Statement A : A refrigerator transfers heat from a lower temperature to a higher temperature. Statement B : Heat cannot flow naturally from a lower temperature to a higher temperature.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Refrigerator uses the elctrical energy to transfer heat from a lower temperature to a higher temperature. So option (3) is correct.
PHXI12:THERMODYNAMICS
371347
A refrigerator works between \(4^\circ C\) and \(30^\circ C\). It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigerated space constant. The power required is
The working of an air conditioner is similar to the working of a refrigerator. An air conditioner is similar to the heat from the room, does some work and rejects the heat to the surroundings. As air conditioner is put in the middle of the room then due to continuous, external work the room will become slightly warmer.
PHXI12:THERMODYNAMICS
371349
Assertion : A room can be cooled by opening the door of a refrigerator in a closed room. Reason : Heat flows from lower temperature (refrigerator) to higher temperature (room).
1 Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Leaving the refrigerator door open causes more heat expulsion than absorption, warming the room (as per) the second law of thermodynamics. Assertion is false. Heat naturally moves from a lower-temperature body to a higher-temperature one, causing the room temperature to rise due to work done by compressor. Reason is true. So correct option is (4).
371345
The freezer in a refrigerator is located at the top section so that
1 The entire chamber of the refrigerator is cooled quickly due to convection
2 The motor is not heated
3 The heat gained from the environment is high
4 The heat gained from the environment is low.
Explanation:
Conceptual Question
KCET - 2006
PHXI12:THERMODYNAMICS
371346
Statement A : A refrigerator transfers heat from a lower temperature to a higher temperature. Statement B : Heat cannot flow naturally from a lower temperature to a higher temperature.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Refrigerator uses the elctrical energy to transfer heat from a lower temperature to a higher temperature. So option (3) is correct.
PHXI12:THERMODYNAMICS
371347
A refrigerator works between \(4^\circ C\) and \(30^\circ C\). It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigerated space constant. The power required is
The working of an air conditioner is similar to the working of a refrigerator. An air conditioner is similar to the heat from the room, does some work and rejects the heat to the surroundings. As air conditioner is put in the middle of the room then due to continuous, external work the room will become slightly warmer.
PHXI12:THERMODYNAMICS
371349
Assertion : A room can be cooled by opening the door of a refrigerator in a closed room. Reason : Heat flows from lower temperature (refrigerator) to higher temperature (room).
1 Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Leaving the refrigerator door open causes more heat expulsion than absorption, warming the room (as per) the second law of thermodynamics. Assertion is false. Heat naturally moves from a lower-temperature body to a higher-temperature one, causing the room temperature to rise due to work done by compressor. Reason is true. So correct option is (4).
371345
The freezer in a refrigerator is located at the top section so that
1 The entire chamber of the refrigerator is cooled quickly due to convection
2 The motor is not heated
3 The heat gained from the environment is high
4 The heat gained from the environment is low.
Explanation:
Conceptual Question
KCET - 2006
PHXI12:THERMODYNAMICS
371346
Statement A : A refrigerator transfers heat from a lower temperature to a higher temperature. Statement B : Heat cannot flow naturally from a lower temperature to a higher temperature.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Refrigerator uses the elctrical energy to transfer heat from a lower temperature to a higher temperature. So option (3) is correct.
PHXI12:THERMODYNAMICS
371347
A refrigerator works between \(4^\circ C\) and \(30^\circ C\). It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigerated space constant. The power required is
The working of an air conditioner is similar to the working of a refrigerator. An air conditioner is similar to the heat from the room, does some work and rejects the heat to the surroundings. As air conditioner is put in the middle of the room then due to continuous, external work the room will become slightly warmer.
PHXI12:THERMODYNAMICS
371349
Assertion : A room can be cooled by opening the door of a refrigerator in a closed room. Reason : Heat flows from lower temperature (refrigerator) to higher temperature (room).
1 Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Leaving the refrigerator door open causes more heat expulsion than absorption, warming the room (as per) the second law of thermodynamics. Assertion is false. Heat naturally moves from a lower-temperature body to a higher-temperature one, causing the room temperature to rise due to work done by compressor. Reason is true. So correct option is (4).
371345
The freezer in a refrigerator is located at the top section so that
1 The entire chamber of the refrigerator is cooled quickly due to convection
2 The motor is not heated
3 The heat gained from the environment is high
4 The heat gained from the environment is low.
Explanation:
Conceptual Question
KCET - 2006
PHXI12:THERMODYNAMICS
371346
Statement A : A refrigerator transfers heat from a lower temperature to a higher temperature. Statement B : Heat cannot flow naturally from a lower temperature to a higher temperature.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Refrigerator uses the elctrical energy to transfer heat from a lower temperature to a higher temperature. So option (3) is correct.
PHXI12:THERMODYNAMICS
371347
A refrigerator works between \(4^\circ C\) and \(30^\circ C\). It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigerated space constant. The power required is
The working of an air conditioner is similar to the working of a refrigerator. An air conditioner is similar to the heat from the room, does some work and rejects the heat to the surroundings. As air conditioner is put in the middle of the room then due to continuous, external work the room will become slightly warmer.
PHXI12:THERMODYNAMICS
371349
Assertion : A room can be cooled by opening the door of a refrigerator in a closed room. Reason : Heat flows from lower temperature (refrigerator) to higher temperature (room).
1 Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Leaving the refrigerator door open causes more heat expulsion than absorption, warming the room (as per) the second law of thermodynamics. Assertion is false. Heat naturally moves from a lower-temperature body to a higher-temperature one, causing the room temperature to rise due to work done by compressor. Reason is true. So correct option is (4).
