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  • Question

  • Cv for monoatomic gases is equal to(where, R = gas constant)


  • Options
  • A. R
  • B. 1.5 R
  • C. 2R
  • D. 3R

  • Correct Answer
  • 1.5 R 

    • Stoichiometry problems

    Search Results

    • 1. Enthalpy of a vapor gas mixture may be increased by increasing the

    • Options
    • A. temperature at constant humidity.
    • B. humidity at constant temperature.
    • C. temperature and the humidity.
    • D. all (a), (b) & (c).
      • Discuss
    • 2. The unit of Cp in S.I. units is

    • Options
    • A. W/m2.°K
    • B. J/kg.°K
    • C. W/m.°K
    • D. J/m3. °K
      • Discuss
    • 3. 1m3 is approximately equal to

    • Options
    • A. 28 litres
    • B. 35 ft3
    • C. 4.5 litres
    • D. 4.5 ft3
      • Discuss
    • 4. An aqueous solution of 2.45% by weight H2SO4 has a specific gravity of 1.011. The composition expressed in normality is

    • Options
    • A. 0.2500
    • B. 0.2528
    • C. 0.5000
    • D. 0.5055
      • Discuss
    • 5. A vessel of volume 1000 m3 contains air which is saturated with water vapour. The total pressure and temperature are 100 kPa and 20°C respectively. Assuming that the vapour pressure of water at 20°C is 2.34 kPa, the amount of water vapour (in kg) in the vessel is approximately

    • Options
    • A. 17
    • B. 20
    • C. 25
    • D. 34
      • Discuss
    • 6. Which of the following gases is the most soluble in water?

    • Options
    • A. NH3
    • B. CO2
    • C. H2S
    • D. CH4
      • Discuss
    • 7. The temperature at which a real gas obeys Boyle's law is termed as the

    • Options
    • A. triple point
    • B. Boyle's temperature
    • C. eutectic point
    • D. inversion temperature
      • Discuss
    • 8. Kopp's rule is useful for the determination of

    • Options
    • A. molal heat capacities of gases.
    • B. heat capacities of solids.
    • C. activation energy.
    • D. heat capacities of gases.
      • Discuss
    • 9. Heat of neutralisation of HCl and NaOH is - 57.46 kJ/Kg mole. The heat of ionisation of water will be __________ kJ/Kg mole.

    • Options
    • A. 57.46
    • B. -57.46
    • C. 114.92
    • D. -28.73
      • Discuss
    • 10. Pick out the wrong statement:

    • Options
    • A. Clausius-Clapeyron equation relates the latent heat of vaporisation to the slope of the vapor pressure curve.
    • B. At the boiling point of liquid at the prevailing total pressure, saturated absolute humidity is infinite.
    • C. Percentage saturation and relative saturation are numerically equal for an unsaturated vapor gas mixture.
    • D. Clapeyron equation is given by,; where, P = vapor pressure, T = absolute temperature, ? = latent heat of vaporisation, VG and VL = volumes of gas and liquid respectively.
      • Discuss

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