1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Natali [406]
3 years ago
5

At a certain temperature, the reaction 2NO + Cl2 ⇌ 2NOCl has an equilibrium constant Kc of 45.0. A chemist creates a mixture wit

h the following initial concentrations: [NO] = 0.10 M, [Cl2] = 0.20 M, and [NOCl] = 0.30 M. What will happen as the reaction begins?
Chemistry
1 answer:
VMariaS [17]3 years ago
8 0

This is an incomplete question, here is a complete question.

At a certain temperature, the reaction 2NO(g)+Cl_2(g)\rightarrow 2NOCl(g)  has an equilibrium constant Kc of 45.0. A chemist creates a mixture with the following initial concentrations: [NO] = 0.10 M, [Cl₂] = 0.20 M, and [NOCl] = 0.30 M. What will happen as the reaction begins?

A. [NOCl] will increase.

B. [NOCl] will decrease.

C. [NOCl] will stay the same.

D. There is not enough information to answer the question.

Answer : The correct option is, (C) [NOCl] will stay the same.

Explanation :

Reaction quotient (Q) : It is defined as the measurement of the relative amounts of products and reactants present during a reaction at a particular time.

The given balanced chemical reaction is,

2NO(g)+Cl_2(g)\rightarrow 2NOCl(g)

The expression for reaction quotient will be :

Q=\frac{[NOCl]^2}{[NO]^2[Cl_2]}

In this expression, only gaseous or aqueous states are includes and pure liquid or solid states are omitted.

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

Q=\frac{(0.30)^2}{(0.10)^2\times (0.20)}=45

The given equilibrium constant value is, K_c=45

Equilibrium constant : It is defined as the equilibrium constant. It is defined as the ratio of concentration of products to the concentration of reactants.

There are 3 conditions:

When Q>K_c that means product > reactant. So, the reaction is reactant favored.

When Q that means reactant > product. So, the reaction is product favored.

When Q=K_c that means product = reactant. So, the reaction is in equilibrium.

From the above we conclude that, the Q=K_c that means product = reactant. So, the reaction is in equilibrium that means the concentration of NOCl will stay the same.

Hence, the correct option is, (C) [NOCl] will stay the same.

You might be interested in
How many moles of atoms are in 9.00 g of 13c?
Blababa [14]
<span>The atomic weight of 13C should be pretty close to 13.0. (If you have the exact mass, use it in the problem.) So, 9.00 g / 13.0 g/mol = 0.692 moles Therefore, the answer should be 0.692 moles are in 9.00 g of 13C.</span>
8 0
3 years ago
Read 2 more answers
When placed in a 100mL cube shaped box a substance fills the cube and has a volume of 100 mL. When places in a 50mL tube that sa
Whitepunk [10]

There are five states of matter out of which we encounter three states of matter in our day today life

a) gas b) solid and c) liquid

the main difference between the three is of

a) Inter molecular forces of attraction

b) thermal energy

due to this

a) solid has high intermolecular forces and low thermal energy: thus they have fix shape and occupy fix volume

b) liquid has intermediate forces and medium themal energy. Thus they may have fixed volume and but no fix shape

c) gas has weak intermoelcular forces and high thermal energy. thus they have no fixed volume no fix shape

so in the given problem

the state of the substance D- Gas.

8 0
3 years ago
Boyles Law P1V1 = P2V2
arsen [322]

Answer:

A. The balloons will increase to twice their original volume.

Explanation:

Boyle's law states that the pressure exerted on a gas is inversely proportional to the volume occupied by the gas at constant temperature. That is:

P ∝ 1/V

P = k/V

PV = k (constant)

P = pressure, V = volume.

P_1V_1=P_2V_2

Let the initial pressure of the balloon be P, i.e. P_1=P, initial volume be V, i.e. V_1=V. The pressure is then halved, i.e. P_2=\frac{P}{2}

P_1V_1=P_2V_2\\\\P*V=\frac{P}{2} *V_2\\\\V_2=\frac{2*P*V}{P}\\\\V_2=2V

Therefore the balloon volume will increase to twice their original volume.

3 0
3 years ago
9. When you move your hand from a hot stove what is the stimulus you are reacting to?
Gemiola [76]

Answer:

if you touch a hot stove, the nerves in your skin shoot a message of pain to your brain. The brain then sends a message back telling the muscles in your hand to pull away.

Explanation:

4 0
2 years ago
What is different types of <br> Metal
Slav-nsk [51]

Answer:

copper metal and steel metak

3 0
3 years ago
Read 2 more answers
Other questions:
  • You are attempting to identify two mystery metals. Explain what different properties would be helpful in identifying them and ho
    12·2 answers
  • In the Formula 3H2O what is the 3 called
    9·2 answers
  • At 700 K, CCl4 decomposes to carbon and chlorine. The Kp value for the decomposition is 0.76. Find the starting pressure of CCl4
    12·2 answers
  • What happens to the electron configuration when you move down a family?
    9·1 answer
  • Which do you use to qualify matter?
    8·1 answer
  • True or false
    15·1 answer
  • Naming compounds<br><br>does anyone know the answers for these or at least one of them ?​
    5·2 answers
  • Mr. Evans rides his bicycle an average speed of 8 km/hr. How far has he
    8·2 answers
  • How many moles of hydrogen atoms are in 1 mole of sulfuric acid?
    15·1 answer
  • What are the 5 types of matter?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!