A thermal program closes when every ramp energy and the total cite the same heat bars. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
Each ramp multiplies heat capacity by temperature change
The rendered program uses heat capacity 4 J/K. Its first ramp changes by 5 K and uses 20 J.
Q=CΔT=4J/K⋅5K=20J
Three ramp programs show energy addition
Every row lists the programmed temperature changes, the computed ramp heats, and the total energy. The total is a sum of checked bars, not a separate estimate.