Answered

Will Maynez burns a 0.6-g
peanut beneath 44 g
of water, which increases in temperature from 22∘C
to 58 ∘C
. (The specific heat capacity of water is 1.0 cal/g⋅∘C
.)
(Figure 1)
Figure1 of 1
The figure shows a man holding a burning peanut under the vessel with a liquid. The vessel is fixed by the holder, which is attached to the support. There is a thermometer inside the vessel.
Part A
Assuming 50 %
efficiency, find the peanut's food value.