Thermodynamics chemistry online mock test 1

This Quiz is a Simple test for +2 Science group students which contain Questions asked from  Thermodynamics . Just participate in it and te...

This Quiz is a Simple test for +2 Science group students which contain Questions asked from  Thermodynamics . Just participate in it and test your skill. 💗💗💗💗💗💗💗

Set- 1       Set -2      Set- 3       Set -4        Set- 5       Set -6         Set-7       Set -8       Set- 9       Set -10


Set -1

  1. According to Trouton's rule, the value of change in entropy of vaporization is
  2. 21 cal. deg–1 mole–1
    12 cal. deg– 1 mol
    21 kcal. deg. mole–1
    12 kcal. deg. mol–1
  3. All the naturally occurring processes proceed spontaneously in a direction which leads to
  4. decrease of entropy
    increase in enthalpy
    increase in free energy
    decrease of free energy
  5. Change in Gibbs free energy is given by
  6. ΔG = ΔH + TΔS
    ΔG = ΔH – TΔS
    ΔG = ΔH x TΔS
    ΔG = TΔS – ΔH
  7. Entropy (S) and the entropy change (ΔS) of a process
  8. are path functions
    are state functions
    are constants
    have no values
  9. Entropy is a ___________ function
  10. state
    path
    exact
    inexact
  11. For the reaction 2Cl(g) → Cl2(g), the signs of ΔH and ΔS are respectively
  12. +, –
    +, +
    –, –
    –, +
  13. Free energy (G) and the free energy change (ΔG) correspond to the
  14. system only
    surrounding only
    system and surrounding
    all of these
  15. H2O(l) → H2O(g), In this process the entropy
  16. remains constant
    decreases
    increases
    becomes zero
  17. If ΔG for a reaction is negative, the change is
  18. spontaneous
    non-spontaneous
    reversible
    equilibrium
  19. In an adiabatic process which of the following is correct?
  20. q = w
    q = 0
    ΔE = q
    PΔV = 0
  21. In SI unit 1 eu is
  22. 41.84 EU
    4.184 EU
    418.4 EU
    4184 EU
  23. In which of the process is always non-feasible?
  24. ΔH > O, ΔS > O
    ΔH < O, ΔS > O
    ΔH > O, ΔS < O
    ΔH < O, ΔS < O
  25. Standard free energies of formation of elements are taken as
  26. positive
    negative
    zero
    all of these
  27. The amount of heat exchanged with the surrounding at constant temperature and pressure is called
  28. ΔE
    ΔH
    ΔS
    ΔG
  29. The amount of heat exchanged with the surroundings at constant pressure is called
  30. ΔE
    ΔH
    ΔS
    ΔG
  31. The entropy change (ΔS(fusion)) involved in the process of H2O(s) → H2O(l) at 0°C and 1 atm pressure involving ΔH(fusion= 6008 Jmol–1 is
  32. 22.007 Jmol–1 K–1
    22.007 Jmol K–1
    220.07 Jmol–1 K–1
    2.2007 Jmol–1 K–1
  33. The entropy change involved in the process water (liq) to water (vapor, 373K) involving ΔHvap =
  34. 10.952 J mol–1 K–1
    109.52 J mol–1 K–1
    100.952 J mol–1 K–1
    1095.2 J mol–1 K–1
  35. The network obtained from a system is given by
  36. w – PΔV
    w + PΔV
    – w + PΔV
    – w – PΔV
  37. The percentage efficiency of a heat engine that operates between 127°C and 27°C is
  38. 20%
    50%
    100%
    25%
  39. Thermodynamic condition for irreversible spontaneous process at constant T and P is
  40. ΔG < 0
    ΔS < 0
    ΔG > 0
    ΔH > 0
  41. When a liquid boils, there is
  42. an increase in entropy
    a decrease in entropy
    an increase in heat of vaporization
    an increase to free energy
  43. Which of the following does not result in an increase in the entropy?
  44. Rusting of iron
    Crystallisation of sucrose from solution
    Sublimation of camphor
    Conversion of ice to water
  45. Which one of the following is a state function?
  46. q
    Δq
    w
    ΔS
  47. The entropy change for the following process possessing ΔH(transition) as 2090 J .mol–1 1mole S(α, 13°C)  1mole S(β, 13°C) is
  48. 22.007 J. mol –1 K–1
    7.307 J. mol–1 K–1
    0.314 J. mol–1 K–1
    109.52 J.mol–1 K–1
  49. For an isothermal process, the entropy change of the universe during a reversible process is:
  50. Zero
    More
    Less
    None of the above
  51. The SI unit of entropy is :
  52. Cal K–1 mol –1
    erg K–1 mol –1
    J deg–1 mol –2
    J K–1 mol –1
  53. Which is the correct statement of IInd law of thermodynamics?
  54. A process accompanied by decrease in entropy tends to be spontaneous
    Efficiency of a machine can be cent percent
    It is impossible to transfer heat from a cold body to a hot body by a machine without doing any work
    It is possible to convert the input energy completely to work by a machine
  55. The percentage efficiency of a heat engine working between the temperature TK and TK (T1 > T2) is given by
  56. (T2 – T1 / T2) x 100
    (T1 – T2 / T1) x 100
    (T1 / T2) x 100
    (T2 / T1) x 100
  57. The change in entropy for a system and surrounding are – 0.2287 JK–1  and + 0.260 JK–1respectively. Then entropy change of the universe is
  58. – 0.0313 JK–1
    + 0.0313 JK–1
    + 0.877 JK–1
    – 0.877 JK–1
  59. The expression G = H – TS is valid for
  60. constant pressure processes
    constant temperature and pressure processes
    constant temperature processes
    constant volume processes
  61. In a chemical reaction, when number of molecules of products are more than the number of molecules of reactants
  62. entropy increases
    entropy decreases
    heat of vapourisation increases
    free energy increases
  63. A process accompanied by increase in entropy tends to be
  64. isothermal
    adiabatic
    spontaneous
    non-spontaneous
  65. The liquid that deviates from Trouton’s rule is
  66. Hydrochloric acid
    Sulphuric acid
    Phosphoric acid
    Acetic acid
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Advanced Chemistry: Thermodynamics chemistry online mock test 1
Thermodynamics chemistry online mock test 1
Advanced Chemistry
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