chemistry

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At standard pressure, ammonia melts at 195 K and boils at 240 K. If a sample of ammonia at standard pressure is cooled from 200 K down to absolute zero, what physical constants are needed to calculate the change in
enhtalpy?
I) the heat capacity of ammonia(s)
II) the heat capacity of ammonia(`)
III) the heat capacity of ammonia(g)
IV) the enthalpy of fusion of ammonia
V) the enthalpy of vaporization of ammonia

  • chemistry -

    See your earlier post.

  • chemistry -

    If the heat of fusion of ice is 335 J/g, how much heat is needed to melt 2.36 g of ice at 0.0°C?

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