Game Preview

Ch 1 grade 9 Recap

  •  English    6     Public
    Recap session
  •   Study   Slideshow
  • Name one substances which can be easily be changed from one state to other by heating or cooling ?
    Water
  •  15
  • What do you mean by Latent Heat ?
    The heat energy required to change the state of substances.
  •  15
  • Define Latent heat of Fusion ?
    Heat energy required to convert 1kg of solid into liquid .
  •  15
  • Define Latent heat of Vaporization?
    The amount of Heat energy required to convert l kg liquid into gas
  •  15
  • Give two examples for substances which undergo Sublimation ?
    Camphor, Dry ice
  •  15
  • Value of Latent Heat of fusion of Ice is ----------------
    80 cal/gm or 3.34 x 10 5 J/Kg
  •  15