How much heat is required to change a 35.4 g ice cube from ice at -11.0°C to water at 50°C? then at steam 118?
How much heat is required to change a 35.4 g ice cube from ice at -11.0°C to water at 50°C?
How much heat is required to change a 35.4 g ice cube from ice at -11.0°C to steam at 118°C?
Cice=2090 J/kg°C and Csteam= 2010 J/kg°C
don't you just find all the Qs and then add up the energy? for each phase?
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Yes. For the ice to water, the separate Q terms are: heat ice from -11 to 0, melt ice, heat water from 0 to 50. Three terms.
For the ice to steam it's heat ice from -11 to 0, melt ice, heat water from 0 to 100, evaporate water, heat steam from 100 to 118. Five terms.