Question

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What is the wavelength (in meters) of photons with the following energies? In what region of the electromagnetic spectrum does each appear?

Part A 92.0 kJ/mol

What is the wavelength (in meters) of photons with the following energies? In what region of the electromagnetic spectrum does each appear?

Part A 92.0 kJ/mol

What is the wavelength (in meters) of photons with the following energies? In what region of the electromagnetic spectrum does each appear?

Part A 92.0 kJ/mol

What is the wavelength (in meters) of photons with the following energies? In what region of the electromagnetic spectrum does each appear?

Part A 92.0 kJ/m

What is the wavelength (in meters) of photons with the following energies? In what region of the electromagnetic spectrum does each appear?

Part A 92.0 kJ/mol

Answer 1

We have,

Wavelength, $\lambda$ = (N_A x h x c)/E

Here,

c = 3 x 10⁸ m/s

h = 6.626 x 10^-34 Js

N_A = 6.023 x 10²³ /mol

E = 92.0 kJ/mol = 92000 J/mol

Therefore,

$\lambda$ = [(6.023 x 10²³ /mol) x (6.626 x 10^-34 Js) x (3 x 10⁸ m/s)]/(92000 J/mol) = 13.01 x 10^-7 m

Wavelength = 13.01 x 10^-7 m

The obtained wavelength occurs in the IR region