Question

The amount of energy involved in the reaction X+ energy→X
+
+e
-
is known as_______

Answer 1

Answer:

Explanation:

Here each molecules of H

2

1) dissociates (require dissociate enthalpy)

2) H

+

(ionization enthalphy)

3) H

+

(excitation of H)

here H is 4 th state ∴ Energy =

n

2

13.5

=

16

13.6

∴ energy supplied =13.6−

16

13.6

=(

16

15

)13.6

∴ we have total 4H

2

molecules & which means

2NaH

2

molecules.

∴ energy required

⇒2×6.022×10

23

(B.D.E+15.+Excitation energy)

⇒2×6.22×10

23

(4.576+13.6+(

16

13

)13.6)

⇒2×(2×6.022×10

23

×30.376)en/mole

This energy is supplied by x atom

Energy released per atom = 30.37 ev/atom

so atoms req.

⇒2×6.022×10

23

×30.37ev/mole

n=2