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4 years ago

What is the wavelength (in nm) of radiation that has an energy content of 3.85 x10^3 kj/mol?

Chemistry

1 answer:

Nina [5.8K]4 years ago

8 0

The wavelength (in nm) of radiation that has an energy content of 3.85 x10^3 kJ/mol is 5.16 × 10⁻²³ nm.

Below, how the answer was derived is attached; note that C = speed of light, λ= wavelength, E= energy & h = Plank's Constant.

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Phosphorus trichloride gas and chlorine gas react to form phosphorus pentachloride gas. pcl3(g) + cl2(g) equilibrium reaction ar

vladimir1956 [14]

The question is incomplete, here is the complete question:

Phosphorus trichloride gas and chlorine gas react to form phosphorus pentachloride gas:

$PCl_3(g)+Cl_2(g)\rightleftharpoons PCl_5(g)$

A gas vessel is charged with a mixture of $PCl_3(g)$ and $Cl_2(g)$ , which is allowed to equilibriate at 450 K. At equilibrium the partial pressures of the three gases are $p_{PCl_3(g)}$ = 0.126 atm , $p_{Cl_2(g)}$ = 0.156 atm , and $p_{PCl_5(g)}$ = 1.60 atm. What is the value of $K_p$ at this temperature?

Answer: The $K_p$ for the given reaction is 81.4

Explanation:

For the given chemical equation:

$PCl_3(g)+Cl_2(g)\rightleftharpoons PCl_5(g)$

The expression of $K_p$ for above reaction follows:

$K_p=\frac{p_{PCl_5}}{p_{Cl_2}\times p_{PCl_3}}$

We are given:

$p_{PCl_5}=1.60atm\\p_{PCl_3}=0.126atm\\p_{Cl_2}=0.156atm$

Putting values in above equation, we get:

$K_p=\frac{1.60}{0.156\times 0.126}\\\\K_p=81.4$

Hence, the $K_p$ for the given reaction is 81.4

8 0

3 years ago

Which drawing is a structural model of C3Hg?

Aleks04 [339]

Answer:

The correct option is C

Explanation:

The structural model of C₃H₈ is that of option C.

In Structural model which can also be known as structural formula, the atoms of a molecule or compound are identified by the location of chemical bonds that exists between them. A structural formula is seen to consist of symbols. In this case, the atoms are connected by short lines. These short lines actually represent their chemical bonds. Where one, two, or three lines that connect each element that make up the compound stands for single, double, or triple bonds, respectively.

5 0

3 years ago

Which of the compounds below is not an example of a molecular solid?

Sergeu [11.5K]

A rocks or a desk would be molecular solid. Ex. gas is not a molecular solid.

4 0

4 years ago

<img src="https://tex.z-dn.net/?f=%7B%20%5Cred%20%7B%5Csf%7BDefine%20%5C%3A%20Transportational%7D%7D%7D" id="TexFormula1" title=

Tanya [424]

<h3>Answer:</h3>

Easy!!

2+17=19

#hope that helps

4 0

2 years ago

Read 2 more answers

How to convert 0.000984 into scientific notation?

Olin [163]

9.84 * 10^-4
The easiest way I remember is making the decimal first and then seeing what way the 0's are. In this case it is going left so it will be a negative exponent and if you count from 9.84 and move the decimal left 4 that's your answer.

7 0

4 years ago