How this calculator works
Enter mass (kg), specific heat (j/kg·k), temperature change (k). CalcStack applies the displayed formula and reports each intermediate planning value with the units shown.
Formula / method
Q = mcΔT
Worked example
2 kg of water heated 20 K requires 167,360 J.
Assumptions and limitations
Specific heat is constant across the temperature interval and no phase change occurs.
Heat loss, phase changes, container mass and changing heat capacity are excluded.