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Thermodynamics: First Law of Thermodynamics
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Thermodynamics: First Law of Thermodynamics
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25 Questions

1. Heat transferred at constant _____ increases the _____ of a system.
2. It was Joule who first established that heat is a form of energy, and thus laid the foundation of the first law of thermodynamics.
3. The specific heat of a substance at constant pressure is defined as the rate of change of ___ with respect to ___
4. The Bernoulli equation is restricted to _____ fluids but the SFEE is valid for _____ fluids as well.
5. Which of the following represents the steady flow energy equation?
6. For a constant volume process, work done is
7. For an ideal gas, enthalpy becomes
8. Work input is directly proportional to heat and the constant of proportionality is called
9. The heat capacity at constant pressure Cp
10. The steady flow energy equation is applied to which of the following processes?
11. In the differential form, the SFEE becomes
12. For a process in which pV=C, work done is
13. The flow work is the displacement work done by the fluid and is given by
14. When more than one fluid stream enters or leaves the control volume, which type of balance is taken?
15. The total rate of flow of all energy streams entering the control volume must equal to that of leaving the control volume.
16. The enthalpy of an ideal gas depends only on the temperature.
17. Equation of continuity comes from
18. Heat transferred at constant pressure _____ the enthalpy of a system.
19. The specific heat of a substance at constant volume is defined as the rate of change of ___ with respect to ___
20. Specific heat of a substance at constant pressure is a property of the system.
21. Which of the following represents the energy in storage?
22. Specific heat of a substance at constant volume is a property of the system.
23. Which of the following is the first law for a closed system undergoing a cycle?
24. What does a diffuser do?
25. For an insulated nozzle, SFEE of the control surface gives ( considering change in PE is zero and inlet velocity is small compared to exit velocity)

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