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August 21, 2014

Homework Help: CHEMISTRY

Posted by Sarah on Saturday, November 17, 2012 at 12:27am.

Consider a 58.4 g sample of H2O(g) at 125C. What phase or phases are present when -162 kJ of energy is removed from this sample? Specific heat capacities: ice, 2.1 J g-1 C-1; liquid, 4.2 J g-1 C-1; steam, 2.0 J g-1 C-1, ΔHvap = 40.7 kJ/mol, ΔHfus = 6.02 kJ/mol. (Select all that apply.)
gas
liquid
solid



q for H2O(g, 125C) H2O(g, 100C)
kJ
q for H2O(g, 100C) H2O(l, 100C)
kJ
q for H2O(l, 100C) H2O(l, 0C)
kJ
q for H2O(l, 0C) H2O(s, 0C)
kJ

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