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Specific heat of air at constant pressure is equal to
- a)0.17 Btu/lb °F
- b)0.21 Btu/lb °F
- c)0.24 Btu/lb °F
- d)1.0 Btu/lb °F
- e)1.41 Btu/lb °F
Correct answer is 'C'. Can you explain this answer?
Most Upvoted Answer
Specific heat of air at constant pressure is equal toa)0.17Btu/lb °Fb)...
For ordinary calculations - a value of specific heat cp = 1.0 kJ/kg K (equal to kJ/kg oC) or 0.24 Btu(IT)/lb °F - is normally accurate enough
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Specific heat of air at constant pressure is equal toa)0.17Btu/lb °Fb)...
Understanding Specific Heat of Air
Specific heat is a property that describes how much energy is required to raise the temperature of a substance. For gases like air, specific heat can vary based on whether the process occurs at constant pressure or constant volume.
Specific Heat at Constant Pressure
- The specific heat of air at constant pressure (Cp) indicates how much heat is needed to raise the temperature of a pound of air by one degree Fahrenheit while maintaining constant pressure.
- The value for dry air at constant pressure is approximately 0.24 Btu/lb °F.
Why Option 'C' is Correct
- The specific heat capacity of 0.24 Btu/lb °F is widely accepted in engineering and thermodynamics literature for dry air under standard conditions.
- This value is crucial in calculations involving heating, cooling, and energy transfer in air systems, such as HVAC (Heating, Ventilation, and Air Conditioning).
Applications in Engineering
- Understanding the specific heat of air is essential for designing efficient thermal systems.
- It helps in predicting how air will behave when heated or cooled, an important factor in various mechanical engineering applications.
In summary, the specific heat of air at constant pressure is approximately 0.24 Btu/lb °F, making option 'C' the correct answer. This value is vital for engineers working with thermal dynamics and energy systems.
Specific heat is a property that describes how much energy is required to raise the temperature of a substance. For gases like air, specific heat can vary based on whether the process occurs at constant pressure or constant volume.
Specific Heat at Constant Pressure
- The specific heat of air at constant pressure (Cp) indicates how much heat is needed to raise the temperature of a pound of air by one degree Fahrenheit while maintaining constant pressure.
- The value for dry air at constant pressure is approximately 0.24 Btu/lb °F.
Why Option 'C' is Correct
- The specific heat capacity of 0.24 Btu/lb °F is widely accepted in engineering and thermodynamics literature for dry air under standard conditions.
- This value is crucial in calculations involving heating, cooling, and energy transfer in air systems, such as HVAC (Heating, Ventilation, and Air Conditioning).
Applications in Engineering
- Understanding the specific heat of air is essential for designing efficient thermal systems.
- It helps in predicting how air will behave when heated or cooled, an important factor in various mechanical engineering applications.
In summary, the specific heat of air at constant pressure is approximately 0.24 Btu/lb °F, making option 'C' the correct answer. This value is vital for engineers working with thermal dynamics and energy systems.
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Specific heat of air at constant pressure is equal toa)0.17Btu/lb °Fb)0.21Btu/lb °Fc)0.24Btu/lb °Fd)1.0Btu/lb °Fe)1.41Btu/lb °FCorrect answer is 'C'. 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 Specific heat of air at constant pressure is equal toa)0.17Btu/lb °Fb)0.21Btu/lb °Fc)0.24Btu/lb °Fd)1.0Btu/lb °Fe)1.41Btu/lb °FCorrect answer is 'C'. 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 Specific heat of air at constant pressure is equal toa)0.17Btu/lb °Fb)0.21Btu/lb °Fc)0.24Btu/lb °Fd)1.0Btu/lb °Fe)1.41Btu/lb °FCorrect answer is 'C'. Can you explain this answer?.
Specific heat of air at constant pressure is equal toa)0.17Btu/lb °Fb)0.21Btu/lb °Fc)0.24Btu/lb °Fd)1.0Btu/lb °Fe)1.41Btu/lb °FCorrect answer is 'C'. 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 Specific heat of air at constant pressure is equal toa)0.17Btu/lb °Fb)0.21Btu/lb °Fc)0.24Btu/lb °Fd)1.0Btu/lb °Fe)1.41Btu/lb °FCorrect answer is 'C'. 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 Specific heat of air at constant pressure is equal toa)0.17Btu/lb °Fb)0.21Btu/lb °Fc)0.24Btu/lb °Fd)1.0Btu/lb °Fe)1.41Btu/lb °FCorrect answer is 'C'. Can you explain this answer?.
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