The internal energy of an ideal gas is a function of its __________ only.

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1. At the critical point of a substance
2. A domestic refrigerator has a/an __________ cooled condenser.
3. If we increase the pressure on a substance (which is at its triple point), then the triple point
4. For a constant volume process
5. Internal energy of an element at 1 atm and 25° C is __________ kcal/kg.mole.
6. Entropy is a measure of the __________ of a system.
7. Claude's liquefaction process employs the cooling of gases by
8. While dissolving a gas into a liquid at a constant temperature, the ratio of the concentration of the…
9. The difference between isothermal compressibility and adiabatic compressibility for an ideal gas is
10. Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the
11. Law of corresponding states says that
12. The following heat engine produces power of 100,000 kW. The heat engine operates between 800 K and 300…
13. Forward reaction will be favoured for the exothermic reaction, represented by CO + H2O CO2 + H2, by
14. For a constant pressure reversible process, the enthalpy change (ΔH) of the system is
15. Which of the following is an undesirable characteristic of a refrigerant?
16. Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the…
17. Mollier chart is a __________ plot.
18. The equation relating E, P, V and T which is true for all substances under all conditions is given by…
19. The absolute entropy for all crystalline substances at absolute zero temperature is
20. Minimum number of phases that exists in a system is 1. Number of chemical species in a colloidal system…
21. The activity of an ideal gas is numerically __________ its pressure.
22. Air enters an adiabatic compressor at 300K. The exit temperature for a compression ratio of 3, assuming…
23. In a homogeneous solution, the activity coefficient of a component depends upon the
24. The equation DU = Tds - PdV is applicable to infinitesimal changes occuring in
25. At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy…
26. No work is done by the system, when a reaction occurs at constant
27. At __________ point, all the three phases (i.e. solid, liquid and gas) co-exist.
28. Which is not constant for an ideal gas?
29. Choose the condition that must be specified in order to liquify CO2 (triple point for CO2 is - 57°C…
30. For the reversible exothermic reaction, N2 + 3H2 2NH3, increase of pressure would

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