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Assertion (A): At a given temperature, the enthalpy of super-heated steam is the same as that of saturated steam.
Reason (R): The enthalpy of vapour at lower pressures is dependent on temperature alone.
- a)Both A and R are individually true and R is the correct explanation of A
- b)Both A and R are individually true but R is NOT the correct explanation of A
- c)A is true but R is false
- d)A is false but R is true
Correct answer is option 'D'. Can you explain this answer?
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Assertion (A): At a given temperature, the enthalpy of super-heated st...
Assertion: At a given temperature, the enthalpy of super-heated steam is the same as that of saturated steam.
Reason: The enthalpy of vapor at lower pressures is dependent on temperature alone.
Explanation:
Enthalpy is the sum of internal energy and the pressure times the volume of a system. In case of steam, enthalpy is a measure of the energy content of steam.
At a given temperature, the enthalpy of super-heated steam is higher than that of saturated steam. This is because super-heated steam has more energy content than saturated steam. Super-heated steam is steam that has been heated to a temperature higher than its boiling point at a given pressure.
The reason why the enthalpy of vapor at lower pressures is dependent on temperature alone is because at low pressures, the vapor behaves as an ideal gas. An ideal gas is a theoretical gas that obeys the ideal gas law, which states that the pressure, volume, and temperature of an ideal gas are related by PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the gas constant, and T is temperature.
In case of an ideal gas, the enthalpy of vapor is dependent on temperature alone, and not on pressure. This is because the internal energy of an ideal gas is a function of temperature alone, and not of pressure.
Therefore, the given assertion is false, and the reason is true. The enthalpy of super-heated steam is higher than that of saturated steam at a given temperature. The enthalpy of vapor at lower pressures is dependent on temperature alone, and not on pressure.
Reason: The enthalpy of vapor at lower pressures is dependent on temperature alone.
Explanation:
Enthalpy is the sum of internal energy and the pressure times the volume of a system. In case of steam, enthalpy is a measure of the energy content of steam.
At a given temperature, the enthalpy of super-heated steam is higher than that of saturated steam. This is because super-heated steam has more energy content than saturated steam. Super-heated steam is steam that has been heated to a temperature higher than its boiling point at a given pressure.
The reason why the enthalpy of vapor at lower pressures is dependent on temperature alone is because at low pressures, the vapor behaves as an ideal gas. An ideal gas is a theoretical gas that obeys the ideal gas law, which states that the pressure, volume, and temperature of an ideal gas are related by PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the gas constant, and T is temperature.
In case of an ideal gas, the enthalpy of vapor is dependent on temperature alone, and not on pressure. This is because the internal energy of an ideal gas is a function of temperature alone, and not of pressure.
Therefore, the given assertion is false, and the reason is true. The enthalpy of super-heated steam is higher than that of saturated steam at a given temperature. The enthalpy of vapor at lower pressures is dependent on temperature alone, and not on pressure.
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Assertion (A): At a given temperature, the enthalpy of super-heated steam is the same as that of saturated steam.Reason (R): The enthalpy of vapour at lower pressures is dependent on temperature alone.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer?
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Assertion (A): At a given temperature, the enthalpy of super-heated steam is the same as that of saturated steam.Reason (R): The enthalpy of vapour at lower pressures is dependent on temperature alone.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Assertion (A): At a given temperature, the enthalpy of super-heated steam is the same as that of saturated steam.Reason (R): The enthalpy of vapour at lower pressures is dependent on temperature alone.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A): At a given temperature, the enthalpy of super-heated steam is the same as that of saturated steam.Reason (R): The enthalpy of vapour at lower pressures is dependent on temperature alone.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer?.
Assertion (A): At a given temperature, the enthalpy of super-heated steam is the same as that of saturated steam.Reason (R): The enthalpy of vapour at lower pressures is dependent on temperature alone.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Assertion (A): At a given temperature, the enthalpy of super-heated steam is the same as that of saturated steam.Reason (R): The enthalpy of vapour at lower pressures is dependent on temperature alone.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A): At a given temperature, the enthalpy of super-heated steam is the same as that of saturated steam.Reason (R): The enthalpy of vapour at lower pressures is dependent on temperature alone.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Assertion (A): At a given temperature, the enthalpy of super-heated steam is the same as that of saturated steam.Reason (R): The enthalpy of vapour at lower pressures is dependent on temperature alone.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect 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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ample number of questions to practice Assertion (A): At a given temperature, the enthalpy of super-heated steam is the same as that of saturated steam.Reason (R): The enthalpy of vapour at lower pressures is dependent on temperature alone.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
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