Question

The lonisation enthalpy of sodium is 5.14 ev. How many Kcal of energy is
required to ionise all atoms present in one gram of gaseous Na atoms?​

Answer 1

Answer:

49. 5 joulesIonisation energy: The Minimum energy required to remove most loosely held outer most shell electron in the ground state from an isolated gaseous atom is known as ionization potential.

Here,

No. of moles of sodium =

23

2.3×10

−3

=0.1×10

−3

mole

So energy needed to convert into ions = 495×10

3

(0.1×10

−3

)=49.5 joule

Answer 2

Answer:

5.14 kcal.. :-))))))))()