Question

it takes 513 kj to remove a mole of electrons from the atoms at the surface of a piece of metal. how much energy does it take to remove a single electron from n atom at the surface of the metal

Answer 1

The right solution is "
`8.5* 10^(-19) \ joule`".

Step-by-step explanation:

As we know,

1 mole electron =
`6.023* 10^(23) \ no. \ of \ electrons`

Total energy =
`513 \ KJ`

=
`513* 1000 \ joule`

For single electron,

The amount of energy will be:

=
`(513* 1000)/((6.023* 10^(23)))`

=
`8.5* 10^(-19) \ joule`