Total energy at a point comprises of _____________ energy?

Related Mcqs:

1. Internal energy of a substance comprises of the _____________ energy?

   A. Vibrational
   B. Rotational
   C. Translational
   D. All A., B. & C.

2. Pure aniline is evaporating through a stagnant air film of 1 mm thickness at 300 K and a total pressure of 100 KPa. The vapor pressure of aniline at 300 K is 0.1 KPa. The total molar concentration under these conditions is 40.1 mole/m3. The diffusivity of aniline in air is 0.74 × 10-5m2/s. The numerical value of mass transfer co-efficient is 7.4 × 10-3. Its units are_______________________?

   A. m/s
   B. cm/s
   C. mole/m2.s.Pa
   D. k.mole/m2.s.Pa

3. The heat evolved in the combustion of benzene is represented by the equation: C6H6 + 7.5 O2 = 6CO2 + 3H2O, ΔH = 3264.6 kJ/kg. mole The heat energy change, when 39 gm of C6H6 is burnt in an open container, will be _____________ kJ/kgmole?

   A. +816.15
   B. +1632.3
   C. -1632.3
   D. -2448.45

4. The internal energy of an ideal gas is a function of its _____________ only?

   A. Molecular size
   B. Volume
   C. Pressure
   D. Temperature

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

   A. Infinity
   B. Minus infinity
   C. Zero
   D. None of these

6. For a constant volume process _____________ by the system is used only to increase the internal energy?

   A. Heat absorbed
   B. Work done
   C. Both A. & B
   D. Neither A. nor B

7. The internal energy of an ideal gas does not change in a reversible _____________ process?

   A. Isothermal
   B. Adiabatic
   C. Isobaric
   D. Isometric

8. “The total volume occupied by a gaseous mixture is equal to the sum of the pure component volumes”. This is the _____________ law?

   A. Dalton’s
   B. Amagat’s
   C. Gay-Lussac’s
   D. Avogadro’s

9. A gas mixture contains 6 moles of H2 and 2 moles of N2. If the total pressure of the gaseous mixture is 4 kgf/cm2; then the partial pressure of N2 in the mixture will be _____________ kgf/cm2 ?

   A. 1
   B. 2
   C. 4
   D. 8

10. The partial pressure of each constituent present in an alloy is _____________ the total vapor pressure exerted by the alloy?

    A. Less than
    B. Equal to
    C. More than
    D. Either B. or C; depends on the type of alloy