How much energy is absorbed with radiation of wavelength of 200 nm?

Question

Chemistry

Dale Young

11 August, 05:19

How much energy is absorbed with radiation of wavelength of 200 nm?

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Answers (1)

Know the Answer?

Mercedes Wolfe · Answer 1

E = 0.09 * 10⁻¹⁷J

Explanation:

Given dа ta:

wavelength of radiations = 200 nm (200 * 10⁻⁹ m)

Energy absorbed = ?

Solution:

Formula:

E = hc/λ

h = 6.63 * 10⁻³⁴ Js

c = 3 * 10⁸ m/s

Now we will put the values.

E = 6.63 * 10⁻³⁴ Js * 3 * 10⁸ ms⁻¹ / 200 * 10⁻⁹ m

E = 19.89 * 10⁻²⁶ J / 200 * 10⁻⁹

E = 0.09 * 10⁻¹⁷J