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Dr. Wolf's Heat Equation Calculator and Random Problem Generator


Use the boxes to the right to fill in the information for your question, then click Calculate.

Or click on Random to generate a random question you can solve.


oC Only kg Only

Problem to Solve

How much heat energy is needed to change of from to at ?


Final Answer

Stepwise Solution

Conversions and Comments

Equation and Value List:
Phase Changes:
Q = m x HF   HFH2O = 334 kJ/kg
Q = m x HV   HVH2O = 2260 kJ/kg

Temperature Changes:
Q = m x ΔT x specific heat   ΔT = Tfinal - Tinitial = 2.095 kJ/kg oC
s.h.water = 4.19 kJ/kg oC
s.h.steam = 2.0267 kJ/kg oC

Q Total (for multi-step problems):
Qtotal = Q1 + Q2 + ...

Map It Out

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