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3 years ago

Find the wavelength of the electromagnetic radiation with a frequency of 3x10^-18Hz (Show Work)

Chemistry

1 answer:

aalyn [17]3 years ago

5 0

Answer:

λ = 1×10²⁶m

Explanation:

Given data:

Wavelength of radiation = ?

Frequency of radiation = 3×10⁻¹⁸Hz

Solution:

Formula:

c = f × λ

c = speed of wave = 3×10⁸ m/s

by putting values,

3×10⁸ m/s = 3×10⁻¹⁸Hz × λ

λ = 3×10⁸ m/s / 3×10⁻¹⁸s⁻¹

λ = 1×10²⁶m

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The estimated heat of vaporization of diethyl ether using the Chen's rule is A. 29.7 KJ/mol B. 33.5 KJ/mol C. 26.4 KJ/mol D. 36.

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Answer:

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Explanation:

The Chen's rule for the calculation of heat of vaporization is shown below:

$\Delta H_v=RT_b\left [ \frac{3.974\left ( \frac{T_b}{T_c} \right )-3.958+1.555lnP_c}{1.07-\left ( \frac{T_b}{T_c} \right )} \right ]$

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$\Delta H_v$ is the Heat of vaoprization (J/mol)

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$T_c$ is the Critical temperature of the gas (K)

$P_c$ is the Critical pressure of the gas (bar)

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For diethyl ether:

$T_b=307.4\ K$

$T_c=466.7\ K$

$P_c=36.4\ bar$

Applying the above equation to find heat of vaporization as:

$\Delta H_v=8.314\times307.4 \left [ \frac{3.974\left ( \frac{307.4}{466.7} \right )-3.958+1.555ln36.4}{1.07-\left ( \frac{307.4}{466.7} \right )} \right ]$

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Find the wavelength of the electromagnetic radiation with a frequency of 3x10^-18Hz￼ (Show Work)

Find the wavelength of the electromagnetic radiation with a frequency of 3x10^-18Hz (Show Work)