Chemical Process Calculation Questions and Answers – Enthalpy – I

This set of Chemical Process Calculation Multiple Choice Questions & Answers (MCQs) focuses on “Enthalpy – I”.

1. Enthalpy (H) is
a) H = U + PV
b) H = U – PV
c) H = U*PV
d) None of the mentioned
Where: U-Internal energy, P- Pressure, V- Volume
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2. Specific enthalpy is the function of
a) Temperature and Pressure
b) Temperature and Volume
c) Pressure and Volume
d) None of the mentioned
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3. Cp is the change in enthalpy with respect to temperature at constant _____________
a) Pressure
b) Volume
c) Temperature
d) None of the mentioned
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4. For ideal gases, Enthalpy and Internal energy is only the function of __________
a) Pressure
b) Volume
c) Temperature
d) None of the mentioned
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5. Enthalpy has no absolute value. Only changes can be calculated.
The given statement is
a) Correct
b) Incorrect
c) Always incorrect
d) None of the mentioned
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6. For ideal gases, the heat capacity relation is
a) Cp = Cv – R
b) Cv = Cp + R
c) Cp – Cv = R
d) None of the mentioned
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7-10. For the given figure

7. What is T1?
a) T, melting
b) T, freezing
c) T, vaporization
d) T, condensation
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8. What is T2?
a) T, melting
b) T, freezing
c) T, vaporization
d) T, condensation
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9. What is H1?
a) Heat of fusion
b) Heat of vaporization
c) Heat of sublimation
d) None of the mentioned
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10. What is H2?
a) Heat of fusion
b) Heat of vaporization
c) Heat of sublimation
d) None of the mentioned
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Sanfoundry Global Education & Learning Series – Chemical Process Calculation.
To practice all areas of Chemical Process Calculation, here is complete set of 1000+ Multiple Choice Questions and Answers.