Self Studies

Chemistry Test ...

TIME LEFT -
  • Question 1
    4 / -1

    From the following data, the heat of formation of Ca(OH)2(s) at 18°C is ………..kcal:

  • Question 2
    4 / -1

    Which of the following statement(s) is/are correct :

    Statement(a) : ΔrH° for the reaction H2O(g) → 2H(g) + O(g) is 925 kJ/mol

    Statement(b) : ΔrH° for the reaction OH(g) → H(g) + O(g) is 502 kJ/mol

    Statement(c) : Enthalpy of formation of H(g) is-–218 kJ/mol

    Statement(d) : Enthalpy of formation of OH(g) is 42 kJ/mol

  • Question 3
    4 / -1

  • Question 4
    4 / -1

    The pressure-volume work for an ideal gas can be calculated by using the expression  The work can also be calculated from the pV– plot by using the area under the curve within the specified limits. When an ideal gas is compressed (a) reversibly or (b) irreversibly from volume Vi to Vf . choose the correct option.

  • Question 5
    4 / -1

    During complete combustion of one mole of butane, 2658 kJ of heat is released. The thermochemical reaction for above change is ΔfUof formation of CH4 (g) at certain temperature is –393 kJ mol−1. The value of ΔfH0is

  • Question 6
    4 / -1

    Calculate the standard enthalpy of formation of CH3OH(l) from the following data: 

    CH3​OH(I)+3/2​O2​(g)→CO2​(g)+2H2​O(l);  △r​Hθ=−726kJmol−1

    C(graphite)​+O2​(g)→CO2​(g);    △c​Hθ=−393kJmol−1

    H2​(g)+1/2​O2​(g)→H2​O(l);    △f​Hθ=−286kJmol−1

  • Question 7
    4 / -1

    Suppose the elements X and Y combine to form two compounds XY2 and X3Y2. When 0.1 mole of XY2 weighs 10 g and 0.05 mole of X3Y2 weighs 9 g, the atomic weights of X and Y are

  • Question 8
    4 / -1

    For an endothermic reaction when ΔH represents the enthalpy of the reaction in kJ mol-1, the minimum value for the energy of activation will be

  • Question 9
    4 / -1

    Enthalpies of formation of CO(g) , CO2 (g) , N2O (g) and N2O4 (g) are -110, - 393, 81 and 9.7 kJ mol-1. Thus, ΔrU for the reaction at 298 K is,

  • Question 10
    4 / -1

    The equilibrium concentrations of the species in the reaction A + B ⇔ C + D are 2, 3, 10 and 6 mol L-1, respectively at 300 K. ΔG0 for the reaction is (R = 2cal/mol K)

Submit Test
Self Studies
User
Question Analysis
  • Answered - 0

  • Unanswered - 10

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
Submit Test
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now