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
Vinil7 [7]
3 years ago
6

For the reaction H2(g) + I2(g) 2HI(g), Kc = 50.2 at 445ºC. If [H2] = [I2] = [HI] = 1.75  10-3 M at 445ºC, which one of these st

atements is true? A) The system is at equilibrium, thus no concentration changes will occur. B) The concentrations of HI and I2 will increase as the system approaches equilibrium. C) The concentration of HI will increase as the system approaches equilibrium. D) The concentrations of H2 and HI will fall as the system moves toward equilibrium. E) The concentrations of H2 and I2 will increase as the system approaches equilibrium
Chemistry
1 answer:
Soloha48 [4]3 years ago
3 0

Answer: C) The concentration of HI will increase as the system approaches equilibrium.

Explanation:

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as K_c

K is the constant of a certain reaction when it is in equilibrium, while Q is the quotient of activities of products and reactants at any stage other than equilibrium of a reaction.

For the given chemical reaction:

H_2(g)+I_2(g)\rightarrow 2HI(g)

The expression for Q_c is written as:

Q_c=\frac{[HI]^2}{[H_2]^1[I_2]^1}

Q_c=\frac{(1.75\times 10^{-3})^2}{(1.75\times 10^{-3})^1\times (1.75\times 10^{-3})^1}

Q_c=1.00

K_c=50.2

Thus as K_{eq}>Q , the reaction will shift towards the right i.e. towards the product side.

You might be interested in
The use of existing information in books, articles, and electronic databases is known as Group of answer choices Primary researc
BARSIC [14]

Answer:

Secondary research  

Explanation:

Secondary research involves using already existing data, like what can be found in in books, articles, and electronic databases.

A is wrong. Primary research is the research that you do to obtain new information, as in experiments or in interviews and surveys.

B is wrong. Qualitative research is the gathering of non-numerical data.

C is wrong. Summative research is done at the end of a project to determine its success. It can also point the way to future research projects.

5 0
3 years ago
n Part B, suppose the tablet was mostly dissolved when some of your solution splashed out of the beaker as CO2 continued to evol
Mandarinka [93]

Answer:

The perceived mass of CO2 would not be affected in large quantities because the splash constitutes small particles of water with sodium bicarbonate that is still reacting. The final calculated mass of sodium bicarbonate in the tablet would be artificially low.

Explanation:

Effervescence is a chemical process that involves the reaction of an acid with a carbonate or sodium bicarbonate, releasing carbon dioxide through a liquid. An example is seen in carbonated beverages, in these the gas that escapes from the liquid is carbon dioxide. The bubbles that are seen are produced by the effervescence of the dissolved gas, which by itself is not visible in its dissolved form.

8 0
3 years ago
For which gases does the ratio of PV to RT equal a constant? ideal gases gases at very high pressure gases of very low temperatu
KatRina [158]
It's one for ideal gases . by the way , remember that it's molar volume not volume itself and, this ratio is shown by Z and is called<span> Compressibility </span> factor.

6 0
3 years ago
Read 2 more answers
Even if you used the right specific heat (c) and temperature change (∆T) for ice, for liquid, and for steam, it does not give yo
vodka [1.7K]

Answer: Heat of melting s = 333 kJ/kg and heat of vaporisation r= 2160 kJ/kg

Explanation:

4 0
3 years ago
Two compounds that have the same molecular formula but different structural formulas are
bija089 [108]
This definition would best fit conformational isomers. Two compounds that have different structural formulas, although the number and types of atoms are the same.
6 0
4 years ago
Other questions:
  • Which type of change occurs when electrons form a bond between two atoms?
    15·1 answer
  • Below are shown, for five metals, reduction reactions and standard electrode potential values. which of these metals is the leas
    13·1 answer
  • What volume (in milliliters) of oxygen gas is required to react with 4.03 g of Mg at STP?
    10·2 answers
  • Lavoisier made a list of thirty-three elements. His list of elements challenged the age-old idea that
    14·2 answers
  • If 13.4 grams of iron (III) oxide reacts with 12.3 grams of carbon monoxide to produce 8.23 g of pure iron, what are the theoret
    13·1 answer
  • Using the measurements in the table, determine which unidentified metal has the lowest density
    11·2 answers
  • Please help me. It would mean a lot to me please
    15·1 answer
  • Some properties of matter depend on how much matter there is. Put an X next to all of the statements you think are true about pr
    5·1 answer
  • What determines how molecules are redistributed in diffusion?​
    13·1 answer
  • Which base has the smallest base dissociation constant?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!