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anonymous

  • one year ago

How much heat is necessary to melt 56.72 grams of substance Y from solid phase at 15 degrees Celsius to liquid at the same temperature? Melting point of substance Y = 15 degrees Celsius; ∆Hvaporization = 2.83 J/mol; ∆Hfusion = 5.51 J/mol; MWsubstance y = 14.77 g/mol. 21.2 J 3.13 x 102 J 10.9 J 161 J

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  1. JoannaBlackwelder
    • one year ago
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    |dw:1440186143360:dw| This is the overall idea of adding energy from the solid phase to the gas phase. Any ideas about where we are on the graph for this problem?

  2. anonymous
    • one year ago
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    Would it be the third one? @joannablackwelder

  3. JoannaBlackwelder
    • one year ago
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    How do you get that one?

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