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Thermodynamics for Chemical Quiz 7

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Thermodynamics for Chemical Quiz 7

1 / 50

Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is_______?

2 / 50

Pick out the wrong statement?

3 / 50

Refrigeration cycle__________?

4 / 50

Specific heat of a gas for a reversible adiabatic process is_________?

5 / 50

Pick out the wrong statement?

6 / 50

Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400?C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg. K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is________?

7 / 50

Pick out the wrong statement ?

8 / 50

Standard temperature and pressure (S.T.P.) is___________?

9 / 50

Pick out the wrong statement ?

10 / 50

Pick out the extensive property out of the following ?

11 / 50

Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will__________?

12 / 50

Sound waves propagation in air exemplifies an _______ process?

13 / 50

The adiabatic throttling process of a perfect gas is one of constant enthalpy__________?

14 / 50

PV? = Constant (where, ? = Cp/Cv) is valid for a/an _______ process?

15 / 50

Pick out the wrong statement?

16 / 50

Pick out the wrong statement?

17 / 50

Reduced pressure of a gas is the ratio of its___________?

18 / 50

Sound waves propagation in air exemplifies an _______ process?

19 / 50

Pick out the wrong statement?

20 / 50

Sublimation temperature of dry ice (solid CO2) is _____ ?C?

21 / 50

Rotary lime kiln is an example of a/an ______ system?

22 / 50

Pick out the wrong statement__________?

23 / 50

Refrigeration capacity of a household refrigerator may be round about ______ tons?

24 / 50

Pick out the correct statement?

25 / 50

Pick out the wrong statement pertaining to the decomposition of PCl5 represented by, PCl5 ? PCl3 + Cl2.Degree of dissociation of PCl5 will__________?

26 / 50

Pick out the wrong statement ?

27 / 50

Refrigerants commonly used for domestic refrigerators are__________?

28 / 50

Solid and liquid phases of a substance are in equilibrium at the______?

29 / 50

The ammonia synthesis reaction represented by N2 + 3H2 ? 2NH3; ?H = ? 22.4 kcal, is___________?

30 / 50

Pick out the wrong statement ?

31 / 50

Pick out the wrong statement?

32 / 50

Pick out the correct statement?

33 / 50

Specific ______ does not change during phase change at constant temperature and pressure?

34 / 50

The activity of an ideal gas is numerically _____ its pressure?

35 / 50

Requisites of a reversible process is that the ______?

36 / 50

The absolute entropy for all crystalline substances at absolute zero temperature is ______?

37 / 50

Pick out the wrong statement ?

38 / 50

Pick out the wrong statement?

39 / 50

The amount of heat required to decompose a compound into its elements is ______ the heat of formation of that compound from its elements?

40 / 50

Pick out the wrong statement ?

41 / 50

Pick out the correct statement?

42 / 50

Specific/molar Gibbs free energy for a pure substance does not change during_________?

43 / 50

Pick out the wrong statement ?

44 / 50

Solubility of a substance which dissolves with an increase in volume and liberation of heat will be favoured by the________?

45 / 50

Specific volume of an ideal gas is______?

46 / 50

Second law of thermodynamics is concerned with the__________?

47 / 50

PVy = constant, holds good for an isentropic process, which is__________?

48 / 50

Pick out the correct statement?

49 / 50

Pick out the correct statement?

50 / 50

Pick out the undesirable property for a good refrigerant ?

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