From greatest to least, rank the energy needed for these phase changes for equal amounts of H2O: (a) from ice?

From greatest to least, rank the energy needed for these phase changes for equal amounts of H2O: (a) from ice to ice water, (b) from ice-water to boiling water, and (c) from boiling water to steam.

3 Answers

  • specific heat of water is 4.186 kJ/kgC

    specific heat of ice is 2.06 kJ/kgC

    specific heat of steam is 2.1 kJ/kgK

    heat of fusion of ice is 334 kJ/kg

    heat of vaporization of water is 2256 kJ/kg

    The above is all you need to answer this.

  • 1

  • Hello gucci :

    ————————————————-

    ( 1 ) boiling water to steam [ 2257 kJ per kg ]

    ( 2 ) ice water to boiling water [ 420 kJ per kg ]

    ( 3 ) ice to ice water [ 334 kJ per kg ]

    Water heat of vaporization = 2257 kJ per kg

    Water specific heat = 4.2 kJ per kg

    Water heat of fusion = 334 kJ per kg

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