Thermodynamics for Chemical Quiz 4

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Thermodynamics for Chemical Quiz 4

1 / 50

For an exothermic reaction ______?

2 / 50

Generation of heat by friction is an example of a/an _________ change?

3 / 50

For water at 300?C, it has a vapour pressure 8592.7 kPa and fugacity 6738.9 kPa Under these conditions, one mole of water in liquid phase has a volume of 25.28 cm3 and that in vapour phase in 391.1 cm3.Fugacity of water (in kPa) at 9000 kPa will be___________?

4 / 50

For an irreversible process involving only pressure-volume work______?

5 / 50

Fugacity co-efficient of a substance is the ratio of its fugacity to___________?

6 / 50

For the gaseous phase chemical reaction, C2H4(g) + H2O(g) ? C2H5OH(g), the equilibrium conversion does not depend on the_________?

7 / 50

Heat requirement for decomposition of a compound into its elements is ______ that is evolved during the formation of that compound from its elements?

8 / 50

Heat is added at constant pressure in an ideal ______ cycle?

9 / 50

Fugacity and pressure are numerically not equal for the gases___________?

10 / 50

For spontaneous changes in an isolated system (S = entropy) _____?

11 / 50

Gibbs free energy per mole for a pure substance is equal to the___________?

12 / 50

For an isothermal process, the internal energy of a gas______?

13 / 50

Gibbs free energy of mixing at constant pressure and temperature is always___________?

14 / 50

For an ideal gas, the internal energy depends upon its _____ only?

15 / 50

Gibbs-Helmholtz equation is___________?

16 / 50

For multi-component multiple phases to be in equilibrium at the same pressure and temperature, the ________ of each component must be same in all phases?

17 / 50

Free energy change of mixing two liquid substances is a function of the___________?

18 / 50

Grams of butane (C4H10) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be___________?

19 / 50

Fugacity and pressure are numerically equal, when the gas is______?

20 / 50

For organic compounds, group contribution method can be used for the estimation of _______?

21 / 50

Gibbs free energy at constant pressure and temperature under equilibrium conditions is_____?

22 / 50

Fugacity is most helpful in______?

23 / 50

Fugacity of a component in an ideal gas mixture is equal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at constant pressure and temperature _____ as its mole fraction increases?

24 / 50

For an ideal gas, the chemical potential is given by_______?

25 / 50

Free energy_____?

26 / 50

Heat pump_________?

27 / 50

For an incompressible fluid, the ________ is a function of both pressure as well as temperature?

28 / 50

Gibbs free energy (F) is defined as___________?

29 / 50

For an isothermal reversible compression of an ideal gas________?

30 / 50

For the reversible exothermic reaction, N2 + 3H2 ? 2NH3, increase of pressure would_________?

31 / 50

Gibbs-Duhem equation_______?

32 / 50

For a thermodynamic system containing ?x? chemical species, the maximum number of phases that can co-exist at equilibrium is__________?

33 / 50

For any system, what is the minimum number of degrees of freedom ?

34 / 50

Heat of reaction at constant volume is identified with ______ change?

35 / 50

Gibbs free energy of a pure fluid approaches ______ as the pressure tends to zero at constant temperature?

36 / 50

Fugacity is a measure of the______?

37 / 50

Heat evolved/absorbed during conversion of a substance from one allotropic form to another is termed as the heat of_______?

38 / 50

Heat is added at constant temperature in an ideal _______ cycle?

39 / 50

Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure _______ with the increase of reduced temperature?

40 / 50

Gibbs free energy (G) is represented by, G = H ? TS, whereas Helmholtz free energy, A. is given by, A = E ? TS. Which of the following is the Gibbs-Helmholtz equation ?

41 / 50

Free energy change at equilibrium is______?

42 / 50

For an ideal liquid solution, which of the following is unity ?

43 / 50

Gibbs phase rule finds application, when heat transfer occurs by_____?

44 / 50

Gibbs-Duhem equation relates composition in liquid phase and the ______ at constant temperature & pressure?

45 / 50

For an ideal gas, the enthalpy___________?

46 / 50

For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system ______ as its mole fraction increases?

47 / 50

Fundamental principle of refrigeration is based on the _______ law of thermodynamics?

48 / 50

Forward reaction will be favoured for the exothermic reaction, represented by CO + H2O ? CO2 + H2, by__________?

49 / 50

For an ideal gas, the activity co-efficient is__________?

50 / 50

Gases are cooled in Joule-Thomson expansion, when it is ______ inversion temperature?

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