Question

For each of the following systems and time intervals, select the appropriate reduced version of the equation below, the conservation of energy equation.
ΔK + ΔU + ΔEint = W + Q + TMW +TET + TER
(a) the heating coils in your toaster during the first five seconds after you turn the toaster on
- ΔK + ΔU + ΔEint = W + Q + TMW + TMT
- ΔK = W + Q
- ΔU = W + Q + TMW + TMT
- ΔEint = W + Q + TET
- 0 = Q + TMT + TET + TER
- ΔU = Q + TMT
- ΔEint = Q + TET + TER