How many electron volts is equal to joule?

Answer 1

A joule is the work done by applying 1 watt of power for 1 second (J = W x Time in seconds).

1 Watt is 1 Amp at 1 Volt potential (W = Amps x Volts).

1 Amp is 1 coulomb of electrons flowing in a second.

1 coulomb is 6 241 509 629 152 650 000 electrons.

Thus it would appear that there are 6,241,509,629,152,650,000 electrons in a joule, except that 1 Joule could be 2 watts for half a second (or 4 W for 0.25 seconds).

Also 1 Watt could be 2 Amps and half a volt, or .01 Amps at 100 Volts!

The question has no one answer, it has an infinity of possible answers unless more parameters are dictated.

Answer 2

Volts and Joules are completely different units. 1 J = 1kg * (m2/s2) 1 V = 1 J/C = (kg * m2) / (A * s3)

Answer 3

Volts are a measure of EMF. Joules are a measure of energy. The question is basically no more meaningful than "how many feet in a gallon?"

Answer 4

1 electron volt is equal to 1.602 x 10^-19 joules.

Answer 5

1 joule = 6.215 x 1018 eV

Answer 6

1.4*10^-19