Mechanical Engineering Exam > Mechanical Engineering Questions > Consider the following:1. Temperature2. Visco...
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Consider the following:
1. Temperature
2. Viscosity
3. Specific entropy
4. Thermal conductivity
1. Temperature
2. Viscosity
3. Specific entropy
4. Thermal conductivity
Which of the above properties of a system is/are intensive
- a)1 only
- b)2 and 3 only
- c)2, 3 and 4 only
- d)1 and 2 only
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Consider the following:1. Temperature2. Viscosity3. Specific entropy4....
Intensive and Extensive Properties:
In thermodynamics, properties of a system can be classified as either intensive or extensive. Intensive properties are independent of the size or amount of the system, while extensive properties depend on the size or amount of the system.
Explanation of the given properties:
1. Entropy:
Entropy is a measure of the disorder or randomness of a system. It is a state function and is independent of the size or amount of the system. Therefore, entropy is an intensive property.
2. Viscosity:
Viscosity is a measure of a fluid's resistance to flow. It is determined by the internal friction between the fluid molecules. Viscosity is independent of the size or amount of the fluid and is therefore an intensive property.
3. Temperature:
Temperature is a measure of the average kinetic energy of the particles in a system. It is independent of the size or amount of the system and is therefore an intensive property.
4. Specific heat at constant volume:
Specific heat at constant volume is the amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius at constant volume. It is a material-specific property and is independent of the size or amount of the substance. Therefore, specific heat at constant volume is an intensive property.
Conclusion:
From the explanations above, we can conclude that options 'a', 'b', 'c' are incorrect as they do not include all the intensive properties. Option 'D' is the correct answer as it includes all the given properties (viscosity, temperature, and specific heat at constant volume) that are intensive properties.
In thermodynamics, properties of a system can be classified as either intensive or extensive. Intensive properties are independent of the size or amount of the system, while extensive properties depend on the size or amount of the system.
Explanation of the given properties:
1. Entropy:
Entropy is a measure of the disorder or randomness of a system. It is a state function and is independent of the size or amount of the system. Therefore, entropy is an intensive property.
2. Viscosity:
Viscosity is a measure of a fluid's resistance to flow. It is determined by the internal friction between the fluid molecules. Viscosity is independent of the size or amount of the fluid and is therefore an intensive property.
3. Temperature:
Temperature is a measure of the average kinetic energy of the particles in a system. It is independent of the size or amount of the system and is therefore an intensive property.
4. Specific heat at constant volume:
Specific heat at constant volume is the amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius at constant volume. It is a material-specific property and is independent of the size or amount of the substance. Therefore, specific heat at constant volume is an intensive property.
Conclusion:
From the explanations above, we can conclude that options 'a', 'b', 'c' are incorrect as they do not include all the intensive properties. Option 'D' is the correct answer as it includes all the given properties (viscosity, temperature, and specific heat at constant volume) that are intensive properties.
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Community Answer
Consider the following:1. Temperature2. Viscosity3. Specific entropy4....
I am thinking,even specific entropy and thermal conductivity are intensive properties.
Reason
1.Entropy (as the extensive property mentioned above) has corresponding intensive (size-independent) properties for pure materials. A corresponding intensive property is specific entropy, which is entropy per mass of substance involved
2.Also,Chemical potential, refractive index, specific heat capacity, thermal conductivity, viscosity are all examples of intensive properties
Reason
1.Entropy (as the extensive property mentioned above) has corresponding intensive (size-independent) properties for pure materials. A corresponding intensive property is specific entropy, which is entropy per mass of substance involved
2.Also,Chemical potential, refractive index, specific heat capacity, thermal conductivity, viscosity are all examples of intensive properties
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Consider the following:1. Temperature2. Viscosity3. Specific entropy4. Thermal conductivityWhich of the above properties of a system is/are intensivea)1 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1 and 2 onlyCorrect answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Consider the following:1. Temperature2. Viscosity3. Specific entropy4. Thermal conductivityWhich of the above properties of a system is/are intensivea)1 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1 and 2 onlyCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following:1. Temperature2. Viscosity3. Specific entropy4. Thermal conductivityWhich of the above properties of a system is/are intensivea)1 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1 and 2 onlyCorrect answer is option 'D'. Can you explain this answer?.
Consider the following:1. Temperature2. Viscosity3. Specific entropy4. Thermal conductivityWhich of the above properties of a system is/are intensivea)1 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1 and 2 onlyCorrect answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Consider the following:1. Temperature2. Viscosity3. Specific entropy4. Thermal conductivityWhich of the above properties of a system is/are intensivea)1 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1 and 2 onlyCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following:1. Temperature2. Viscosity3. Specific entropy4. Thermal conductivityWhich of the above properties of a system is/are intensivea)1 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1 and 2 onlyCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Consider the following:1. Temperature2. Viscosity3. Specific entropy4. Thermal conductivityWhich of the above properties of a system is/are intensivea)1 onlyb)2 and 3 onlyc)2, 3 and 4 onlyd)1 and 2 onlyCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
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