In terms of generating electricity,fuel cells are ________ than thermal-conversion machines because the chemical energy of a fuel is ________.
A)less efficient;converted into electricity with an intermediate combustion cycle.
B)less efficient;converted directly into electricity without an intermediate combustion cycle.
C)more efficient;converted into electricity with an intermediate combustion cycle.
D)more efficient;converted directly into electricity without an intermediate combustion cycle.
E)about the same in terms of efficiency;converted into electricity with an intermediate combustion cycle.

Question

Quizplus · Accepted Answer

Fuel cells are more efficient than thermal-conversion machines because they convert the chemical energy of a fuel directly into electricity without an intermediate combustion cycle, avoiding the energy losses associated with combustion processes.

In Terms of Generating Electricity,fuel Cells Are ________ Than Thermal-Conversion