Question

Hydrogen fuel cells that operate at lower temperatures use more expensive platinum electrode catalysts.

What helps to make up for the higher-cost electrodes?
a) They use a cheaper fuel.
b) They operate at a higher efficiency.
c) They use a reaction that is not redox.
d) They produce fewer emissions.

Answer 1

the correct answer is B) they operate at a higher efficiency. sorry hope the answers not to late :(

Answer 2

They operate at a higher efficiency.

Step-by-step explanation:

The expensive electrode catalysts like platinum are more efficient and are inert in nature. They can be used again and again and provides better surface for any reaction.