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densk [106]
3 years ago
14

Yet another reaction has an equilibrium constant kc=4.32×105 at 25 ∘c. it is an exothermic reaction, giving off quite a bit of h

eat while the reaction proceeds. if the temperature is raised to 200 ∘c , what will happen to the equilibrium constant? the equilibrium constant will yet another reaction has an equilibrium constant at 25 . it is an exothermic reaction, giving off quite a bit of heat while the reaction proceeds. if the temperature is raised to 200 , what will happen to the equilibrium constant?
Chemistry
2 answers:
Tatiana [17]3 years ago
8 0
The equilibrium constant will decrease.
when this reaction is an exothermic reaction, SO we can assume heat as a product of that reaction.

when Kc = concentration of product/concentration of reactants

So when the temperature and heat increase the reaction will go in the direction which decreases the heat and achieves equilibrium again. So it will go leftwards to decrease the products. and when the products decrease the Kc will decrease. 

Kitty [74]3 years ago
4 0
<span><u><em>Answer:</em></u>
The equilibrium constant will decrease

<u><em>Explanation:</em></u>
<u>The equilibriuc constant (Kc) can be calculated as follows:</u>
Kc = </span>\frac{concentration_o_fproducts}{concentration_o_freactants}<span>

Now, the given equation is an exothermic reaction. This means that <u>heat is s product.</u>

If we increase the amount of heat, the system will no longer be at equilibrium. This equilibrium will <u>shift to the left creating more reactants</u> in order to balance the system and be reach equilibrium again.

By this, we can note that the <u>concentration of reactants in the system will increase</u> which means that the equilibrium constant will decrease.

Hope this helps :)</span>
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Answer:

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b) The water's change in internal energy is -122.1973 kJ

Explanation:

Given data:

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P = pressure = 1 atm

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T₂ = temperature = 100°C

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VL = volume of liquid water = 18.8 mL = 0.0188 L

VG = volume of water vapor = 30.62 L

3.25 moles of liquid water vaporizes

Q = heat added to the system = -40.7 kJ

Questions: a) Calculate the work done on or by the system, W = ?

b) Calculate the water's change in internal energy, ΔU = ?

Heat for 3.25 moles:

Q_{1} =3.25*(-40.7)=-132.275kJ

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7 0
3 years ago
A bacteria culture begins with 15 bacteria which double in amount at the end of every hour. Solve for the number of bacteria tha
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3 years ago
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What is the reaction quotient, Q, for this system when [N2] = 2.00 M, [H2] = 2.00 M, and [NH3] = 1.00 M at 472°C?
cupoosta [38]

Answer : The value of reaction quotient, Q is 0.0625.

Solution : Given,

Concentration of N_2 = 2.00 M

Concentration of H_2 = 2.00 M

Concentration of NH_3 = 1.00 M

Reaction quotient : It is defined as a concentration of a chemical species involved in the chemical reaction.

The balanced equilibrium reaction is,

N_2+3H_2\rightleftharpoons 2NH_3

The expression of reaction quotient for this reaction is,

Q=\frac{[Product]^p}{[Reactant]^r}\\Q=\frac{[NH_3]^2}{[N_2]^1[H_2]^3}

Now put all the given values in this expression, we get

Q=\frac{(1.00)^2}{(2.00)^1(2.00)^3}=0.0625

Therefore, the value of reaction quotient, Q is 0.0625.

3 0
3 years ago
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