how much heat is required to warm 225 grams of water from -50c to 200 c

1 answer

q1 = heat needed to raise solid ice from -50 to zero C.
q1 = mass H2O x specific heat ice x (Tfinal-Tinitial)

q2 = heat needed to melt solid ice at zero C to liquid water at zero C.
q2 = mass H2O x heat fusion

q3 = heat needed to raise T of liquid water from zero C to 100 C.
q3 = mass H2O x specific heat water x (Tfinal-Tinitial)

q4 = heat needed to convert H2O at 100 C to steam at 100 C.
q4 = mass H2O x heat vaporization

q5 = heat needed to raise T of steam at 100 to steam at 200 C.
q5 = mass steam x specific heat steam x (Tfinal-Tinitial)

Total q = sum of individual steps.

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