Question

How many volts does the combustion of ethanol and glucose that provide energy correspond to?

Answer 1

Answer to Question #62398, Chemistry / Other

How many volts does the combustion of ethanol and glucose that provide energy correspond to?

Answer:

Heat of combustion for ethanol is 1300 kJ/mol and for glucose is 2805 kJ/mol.

The energy E in joules (J) is equal to the voltage V in volts (V), times the electrical charge Q in coulombs (C):

$$J = \frac{V}{C}$$ $$V = J \times C$$

If we suppose charge flow of $x$ coulombs:

For glucose combustion:

$$E(V) = 2805x \frac{V}{mol}$$

For ethanol combustion:

$$E(V) = 1300x \frac{V}{mol}$$

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