The energy required to ionize magnesium is 738 kj/mol. what minimum frequency of light is required to ionize magnesium

The minimum frequency required to ionize the photon is 111.31 × Hertz

Given:

Energy = 378

To find:

Minimum frequency of light required to ionize magnesium = ?

Formula used:

The energy of photon of light is given by,

E = h v

Where E = Energy of magnesium

h = planks constant

v = minimum frequency of photon

Solution:

The energy of photon of light is given by,

E = h v

Where E = Energy of magnesium

h = planks constant

v = minimum frequency of photon

738 × = 6.63 × × v

v = 111.31 × Hertz

The minimum frequency required to ionize the photon is 111.31 × Hertz

Explanation:

Relation between energy and frequency is as follows.

                     E =

where,   E = energy

              h = planck's constant = Js

          = frequency

As it is given that value of energy is 738 kJ/mol.

          E =

             = J

Hence, putting the given values into the above formula as follows.

                      E =

    J =  

                    = per second

Thus, we can conclude that per second is the minimum frequency of light which is required to ionize magnesium.

answer: he got 23

explanation:

photocells convert light energy to electricity