P-T and T-S diagram for Pure Substance MCQ

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• the Mollier diagram, the constant pressure lines diverge from one another.
  ক

  true

  খ

  false
• At critical pressure, value of Hg-Hf is
  ক

  two

  খ

  one

  গ

  zero

  ঘ

  infinity
• Which of the following represents the latent heat of vaporization at a particular pressure.
  ক

  Hf-Hg

  খ

  Hg-Hf

  গ

  Hf+Hg

  ঘ

  none of the mentioned
• The equation which forms the basis of the Mollier diagram is
  ক

  Tds=-dh+vdp

  খ

  Tds=dh+vdp

  গ

  Tds=dh-vdp

  ঘ

  none of the mentioned
• The temperature at which a liquid boils is very sensitive to pressure but the temperature at which a solid melts is not such a strong function of pressure.
  ক

  true

  খ

  false
• The slope of the fusion curve for water is
  ক

  negative

  খ

  positive

  গ

  zero

  ঘ

  none of the mentioned
• The slopes of sublimation and vaporization curves for all substances are
  ক

  negative

  খ

  positive

  গ

  zero

  ঘ

  none of the mentioned
• Which of the following curves meet at triple point?
  ক

  fusion curve and vaporization curve

  খ

  fusion curve and sublimation curve

  গ

  vaporization curve and sublimation curve

  ঘ

  fusion curve and vaporization curve and sublimation curve