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
Amiraneli [1.4K]
2 years ago
5

The compound PCl5 decomposes into Cl2 and PCl3. The equilibrium of PCl5(g) Cl2(g) + PCl3(g) has a Keq of 2.24 x 10-2 at 327°C. W

hat is the equilibrium concentration of Cl2 in a 1.00 liter vessel containing 0.235 mole of PCl5 and 0.174 mole of PCl3? Remember to use the correct number of significant digits. Cl2 = Are the products or reactants favored?
Physics
2 answers:
nordsb [41]2 years ago
7 0
Take note of the reaction formula which is PCl5=Cl2+PCl3.
The Keq = [Cl2] * [PCl3] / [PCl5]=2.24*10^-2.
For the reason that the volume is 1 liter, the concentration of Cl2 will be computed through: <span>(2.24 * 10^-2) * 0.235 / 0.174 </span> = 0.0303 mol/L is the answer.
Vanyuwa [196]2 years ago
5 0

The equation you’re dealing with is this:

PCl5(g)⇌PCl3(g)+Cl2(g)

The equation is already balanced so you can now proceed to the next step.

The given equilibrium constant at 327°C is Keq = 2.24 x 10^-2.

Since <span><span>K<span><span>eq</span><1</span></span>, this means that at equilibrium, the reaction vessel theoretically contains more reactant than the products. Given the value of Keq, we can expect a very low concentration of chlorine gas at equilibrium.</span>

Set up an ICE table to help you find the equilibrium concentration of the three species.

    PCl5(g) ⇌ PCl3(g) + Cl2(g)

I   0.235         0.174       0

C (−x)            (+x)          (+x)

E 0.235 −      0.174 +     x

 

Based on the law,

Keq= (PCl3) x (Cl2)/PCl5

Substitute:

2.24x10^−2 =[(0.174+x)(x)]/( 0.235-x)

Compute for x.

X=0.0239

T<span>herefore, the reaction vessel will contain Cl2=0.0239 M at equilibrium.</span>

Regarding the second question, reactants are favored the equilibrium concentration of chlorine gas is significantly lower than that of phosphorus pentachloride.

You might be interested in
How did the iron filing patterns show attractive forces between magnetic poles?
nasty-shy [4]

When the magnet is placed on the glass, it is attracted to the iron filings. The pattern of the iron filings shows that the lines of force that make up the magnetic field of the magnet. Also, The lines of force of north and south poles attract each other whereas those of two north poles fend off each other.

4 0
3 years ago
Read 2 more answers
Consider an electron traveling horizontally in the positive direction, above, near, and parallel to a current-carrying wire. The
allsm [11]

Answer:

(a) The electron will move towards the wire.

The direction of the magnetic fields created by the wire can be found via right-hand rule. If you point your thumb towards the direction of the current, and if you curl your fingers, the direction of your four fingers will give the direction of the magnetic field. In this case, magnetic field is around the wire, and into the page just above the wire, where the electron is located.

\vec{F} = q\vec{v} \times \vec{B}

According to the above formula, the direction of the force the wire applies to the electron can be found by right-hand rule.

Since the electron has a negative charge, the direction of the force is towards the wire.

(b) The proton will veer to the right.

The direction of the magnetic field is the same as the previous part. The proton has a positive charge, and coming from above. The direction of its velocity is downwards. The magnetic field above the wire is pointed into the page. Using the right-hand rule, the magnetic force on the proton is directed to the right, with respect to us.

6 0
2 years ago
An automobile with 0.500 m radius tires travels 80,000 km before wearing them out. How many revolutions do the tires make, negle
Zinaida [17]

Answer:

n = 25,464,790.89 revolutions

The tires have made 25,464,790.89 revolutions

Explanation:

Given;

Radius of tires r = 0.5 m

Total distance travelled d = 80,000 km = 80,000,000 m

1 revolution = 2πr

Total distance d = number of revolutions n × 2πr

d = n×2πr

d = 2πnr

Making n the subject of formula;

n = d/2πr

Substituting the given values;

n = (80,000,000)/(2×π×0.5)

n = 25,464,790.89470 revolutions

n = 25,464,790.89 revolutions

The tires have made 25,464,790.89 revolutions

5 0
3 years ago
The electron's velocity at that instant is purely horizontal with a magnitude of 2 \times 10^5 ~\text{m/s}2×10 ​5 ​​ m/s then ho
Lesechka [4]

Complete question:

At a particular instant, an electron is located at point (P) in a region of space with a uniform magnetic field that is directed vertically and has a magnitude of 3.47 mT. The electron's velocity at that instant is purely horizontal with a magnitude of 2×10​⁵​​ m/s then how long will it take for the particle to pass through point (P) again? Give your answer in nanoseconds.

[<em>Assume that this experiment takes place in deep space so that the effect of gravity is negligible.</em>]

Answer:

The time it will take the particle to pass through point (P) again is 1.639 ns.

Explanation:

F = qvB

Also;

F = \frac{MV}{t}

solving this two equations together;

\frac{MV}{t} = qVB\\\\t = \frac{MV}{qVB} = \frac{M}{qB}

where;

m is the mass of electron = 9.11 x 10⁻³¹ kg

q is the charge of electron = 1.602 x 10⁻¹⁹ C

B is the strength of the magnetic field = 3.47 x 10⁻³ T

substitute these values and solve for t

t = \frac{M}{qB} = \frac{9.11 *10^{-31}}{1.602*10^{-19}*3.47*10^{-3}} = 1.639 *10^{-9}  \ s \ = 1.639 \ ns

Therefore, the time it will take the particle to pass through point (P) again is 1.639 ns.

5 0
3 years ago
Lifting a stone block 146m to the top of the Great Pyramid required 146,000 J of work. How much work was done to lift the block
ASHA 777 [7]
B is your answer to the question
3 0
2 years ago
Other questions:
  • If earth rotated on an axis that was not tilted, how would this affect the seasons?
    5·2 answers
  • Determine your Maximum Heart Rate (MHR) by subtracting your age from 220.
    15·1 answer
  • Evaporation is a process that requires energy to occur
    8·1 answer
  • What are some of the physical properties of stars?
    13·1 answer
  • What type of force slows you down as you slide across the floor?
    15·2 answers
  • Objects fall at constant velocity
    12·2 answers
  • What is the charge of an atom? <br> Positive<br> Negative<br> Neutral
    13·2 answers
  • Look at the two wave diagram.Which best describes the difference between wave A and wave B
    15·1 answer
  • A man weighing 490 N on earth weighs only 81.7 N on the moon. His mass on the moon is ____ kg. (Use g=9.8 m/s²)
    15·1 answer
  • A race car starts from rest and accelerates down a track at a rate of 3.0 m/s2
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!