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
irina [24]
3 years ago
7

For the reaction PCl5(g) 4 PCl3(g) 1 Cl2(g) Kp 5 23.6 at 500 K a. Calculate the equilibrium partial pressures of the reactants a

nd products at 500 K if the initial pressures are PPCl5 5 0.560 atm and PPCl3 5 0.500 atm.
Chemistry
1 answer:
ollegr [7]3 years ago
6 0

Answer: Cl_2 = 42.9 atm, PCl_3 = 93.4 atm and PCl_5 = 7.66 atm

Explanation: The given balanced equation is:

PCl_5(g)\rightleftharpoons PCl_3(g)+Cl_2(g)

K_p=523.6

Initial pressure of PCl_5 = 50.560 atm  

initial pressure of PCl_3 = 50.500 atm

Let's say the change in pressure is p. Then:

equilibrium partial pressure of PCl_5 = (50.560 - p) atm

equilibrium partial pressure of PCl_3 = (50.500 + p) atm

equilibrium partial pressure of Cl_2 = p atm

K_p=\frac{(PCl_3)(Cl_2)}{PCl_5}

Let's plug in the values in it:

523.6=\frac{(50.500+p)(p)}{50.560-p}

on cross multiply:

26473.216-523.6p=50.500p+p^2

on rearranging the above equation:

p^2+574.1p-26473.216=0

It's a quadratic equation. On solving this equation:

p = 42.9

So, the equalibrium partial pressure of Cl_2 = 42.9 atm

equilibrium partial pressure of PCl_3 = 50.500 + 42.9 = 93.4 atm

equilibrium partial pressure of PCl_5 = 50.560 - 42.9 = 7.66 atm

You might be interested in
How many significant figures<br> are in this number?<br> 107.051
NARA [144]

Answer:

there are 6 significant figures in 107.051

7 0
3 years ago
Read 2 more answers
At a certain temperature and pressure, one liter of CO2 gas weighs 1.95 g.
AysviL [449]

Answer:

1.332 g.

Explanation:

  • We can use the general law of ideal gas: <em>PV = nRT.</em>

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant,

T is the temperature of the gas in K.

  • At the same T and P and constant V (1.0 L), different gases have the same no. of moles (n):

<em>∴ (n) of CO₂ = (n) of C₂H₆</em>

<em></em>

∵ n = mass/molar mass

<em>∴ (mass/molar mass) of CO₂ = (mass/molar mass) of C₂H₆</em>

mass of CO₂ = 1.95 g, molar mass of CO₂ = 44.01 g/mol.

mass of C₂H₆ = ??? g, molar mass of C₂H₆ = 30.07 g/mol.

<em>∴ mass of C₂H₆ = [(mass/molar mass) of CO₂]*(molar mass) of C₂H₆</em> = [(1.95 g / 44.01 g/mol)] * (30.07 g/mol) =<em> 1.332 g.</em>

<em></em>

7 0
3 years ago
sample of carbon monoxide gas occupies 3.20 L at 125 °C. At what temperature will the gas occupy a volume of 1.54 L if the press
Anna [14]

Answer:

-81.5 degrees C or 191.5 K

Explanation:

We want to use Charles' gas law: V/T = V/T

Our initial volume is 3.20 L, and our initial temperature is 125 degrees C, or 125 + 273 = 398 degrees Kelvin.

Our new Volume is 1.54 L, but we don't know what the temperature is. So, we use the equation:

3.20 L / 398 K = 1.54 L / T ⇒ Solving for T, we get: T = 191.5 K

If we want this in degrees Celsius, we subtract 273: 191.5 - 273 = -81.5 degrees C

3 0
2 years ago
Read 2 more answers
Is the following equation balanced? SO3 + 2H2O H2SO4 no yes
postnew [5]

Answer: No

Explanation: It's not balanced because four oxygen atoms in H2SO4,  whereas there are 5 oxygen atoms in the reactants side. Also, there's more hydrogen atoms on the reactants side.

I hope this helps!

7 0
3 years ago
23. The number of protons in the nucleus of an atom is its...
almond37 [142]

The number of proton in the nucleus of an atom is its Atomic Number.

5 0
3 years ago
Other questions:
  • What is the product when magnesium reacts with sulfuric acid? mg(s) h2so4(aq) →what is the product when magnesium reacts with su
    14·2 answers
  • The New Deal was created under the Roosevelt administration and included components like the Civilian Conservation Corps, Works
    15·2 answers
  • PLEASE HELP! Find out whether the chemical equation is balanced or unbalanced.
    12·1 answer
  • Answerr fasttt pleaseee lets see who can answer
    13·1 answer
  • An apple in a tree has a gravitational store of 8J. As it falls, it accelerates constantly until it hits the ground. What is the
    12·1 answer
  • The distance between an object and a reference point is the object's __________. displacement neutral point position velocity
    15·1 answer
  • Draw the structures of all possible isomers for the following complexes. Indicate which isomers are enantiomer pairs. (a) Bromoc
    9·1 answer
  • Tin-126 has a half life of 100,000 years. How many years does it take to
    5·2 answers
  • Definition: These are the layers of rock or soil that are distinguishable from other layers that have been
    9·1 answer
  • How is the element lead formed?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!