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

Information

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.

kg Liquid Only

Problem to Solve

How much heat energy is needed to change kg g of H2O ice water steam from *C to H2O ice water steam at *C ?

Final Answer

Stepwise Solution

Conversions and Comments

Equation and Value List:
Phase Changes:
Q = m x HF   HF_H2O = 334 ^kJ/_kg
Q = m x HV   HV_H2O = 2260 ^kJ/_kg

Temperature Changes:
Q = m x ΔT x specific heat   ΔT = T_final - T_initial
s.h._ice = 2.095 ^kJ/_{kg ^oC}
s.h._water = 4.18 ^kJ/_{kg ^oC}
s.h._steam = 2.0267 ^kJ/_{kg ^oC}

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

Map It Out