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MakcuM [25]
3 years ago
5

A chemist wants to find Kc for the following reaction at 709 K:2NH3(g) + 3 I2 (g) ----> 6HI(g) + N2(g)

Chemistry
1 answer:
irakobra [83]3 years ago
3 0

Answer:

422455.41

Explanation:

Corrected from source,

Given that:-

N2(g) + 3 H2(g)\rightarrow 2NH3(g) \ Kc_1 = 0.314

The equilibrium constant for the reverse reaction will be the reciprocal of the initial reaction.

The value of equilibrium constant the reaction

2NH3(g)\rightarrow N2(g) + 3 H2(g)

is:

Kc_{1}'=\frac{1}{0.314}

H2(g) + I2(g)\rightarrow 2 HI(g)\  Kc_2 = 51

If the equation is multiplied by a factor of '3', the equilibrium constant of the reverse reaction will be the cube of the equilibrium constant  of initial reaction.

The value of equilibrium constant the reaction

3H2(g) + 3I2(g)\rightarrow 6 HI(g)

is:

Kc_{2}'={51}^3

Adding both the reactions we get the final reaction. So, the equilibrium constants must be multiplied.

The value of equilibrium constant the reaction

2NH3(g) + 3I2(g)\rightarrow 6 HI(g) + N2(g)

is:

Kc'=\frac{1}{0.314}\times {51}^3  = 422455.41

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Scientists are studying animals in a large lake area. In this lake area, both owls and raccoons eat ducks, and ducks eat frogs.
Stolb23 [73]

Answer:

Population of duck and frog will change with the change

Explanation:

The complete question is

Scientists are studying animals in a large lake area. In this lake area, both owls and raccoons eat ducks, and ducks eat frogs. The data shows that recently the size of the raccoon population decreased. How will the decrease in the raccoon population affect the other populations? Be sure to explain whether the owl population, the duck population, and the frog population will change, and why.

  1. Owl population will change
  2. Duck population will change
  3. Frog population will change

Solution

Raccoon eat duck and duck eat frog. Now if the population of Raccoon decreases then the number of predators of duck will decrease thereby increasing the population of duck.

The higher will be the number of ducks, the more frogs they will consume thereby decreasing the population of frogs

Hence both the population of duck and frog will change with the change

5 0
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If you are given a 1.0 L (1000mL) of an unknown liquid which has the mass of 500 grams it is most likely which of the above subs
pantera1 [17]
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6 0
3 years ago
(Gr.7science)
MissTica

Answer:Crystalline solids have well-defined edges and faces, diffract x-rays, and tend to have sharp melting points. In contrast, amorphous solids have irregular or curved surfaces, do not give well-resolved x-ray diffraction patterns, and melt over a wide range of temperatures.

Explanation:

4 0
3 years ago
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Suppose that Daniel has a 3.00 3.00 L bottle that contains a mixture of O 2 O2 , N 2 N2 , and CO 2 CO2 under a total pressure of
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Answer:

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Explanation:

Let's analyse the data given:

Volume → 3L

In the bottle there is a mixture of gases that contains, O₂, N₂ and CO₂.

Total pressure is 4.80 atm

Let's apply the Ideal Gases Law to determine the total moles of the mixture

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We apply the concept of mole fraction:

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olga nikolaevna [1]

The correct answer is C


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3 years ago
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