As the coal ignites and its chemical energy converts to thermal energy, some of the heat necessarily escapes up the smokestack to carry away flue gases (shown as a 14% loss, meaning _____ ).?
A. ?86% of the thermal energy is still available to boil water?
B. ?14% of the thermal energy is still available to boil water?
C. ?86% of the thermal energy is unavailable for use in any form?
D. ?14% of the thermal energy is unavailable for use in any form?
Answer: A
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