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
olga_2 [115]
2 years ago
8

Consider the reaction at 25 °C. H2O(l) ↔ H2O(g) ΔG° = 8.6 kJ/mol Calculate the pressure of water at 25 °C (Hint: Get K eq)

Chemistry
1 answer:
tangare [24]2 years ago
4 0

Answer:

\boxed{\text{23.4 mmHg}}

Explanation:

H₂O(ℓ) ⟶ H₂O(g)

K_{\text{p}} = p_{\text{H2O}}

\text{The relationship between $\Delta G^{\circ}$ and $K_{\text{ p}}$ is}\\\Delta G^{\circ} = -RT \ln K_{\text{p}}

Data:  

T = 25 °C

ΔG° = 8.6 kJ·mol⁻¹

Calculations:

T = (25 + 273.15) K = 298.15 K

\begin{array}{rcl}8600 & = & -8.314 \times 298.15 \ln K \\8600 & = & -2478.8 \ln K\\-3.47 & = & \ln K\\K&=&e^{-3.47}\\& = & 0.0311\end{array}

Standard pressure is 1 bar.

p_{\text{H2O}} = \text{0.0311 bar} \times \dfrac{\text{750.1 mmHg}}{\text{1 bar}} = \textbf{23.4 mmHg}\\\\\text{The vapour pressure of water at $25 ^{\circ}\text{C}$ is $\boxed{\textbf{23.4 mmHg}}$}

You might be interested in
Hey hiihhbdndkdkdjdjddjdj
grigory [225]

Answer:

4 cups are about 0.25 gallons

Explanation:

To convert a cup measurement to a gallon measurement, divide the volume by the conversion ratio. The volume in gallons is equal to the cups divided by 16.

7 0
2 years ago
Read 2 more answers
Why do plants need sap?
Nadya [2.5K]
Plants don't need sap. They make it like Maple trees.
8 0
3 years ago
Read 2 more answers
(a) Identify the name of the method used below for the separation.
raketka [301]

Answer:

(a) Chromatography

(b) DNA fingerprinting

(c) Origin

(d) Sweet C consists of more colours than sweet D.

  ii. The speed of colours in sweet C are proportional to one another, while that of colours in D is not.

Explanation:

Chromatography is one of the physical method of separating mixtures. This process composed of the ability of the constituents in a mixture to separate by virtue of rate of movement through a medium, thus separates into constituents.

It can be used to determine the soluble constituents of a given mixture. And for purification purpose.

3 0
3 years ago
What is a predator???????
Bess [88]

Answer:

It's an animal that hunts anothe animal in way to eat it

Explanation:

6 0
2 years ago
Read 2 more answers
Which statement describes the use of a flowchart?
Crazy boy [7]

Answer:

idk i got 0 iQ

Explanation:

4 0
3 years ago
Other questions:
  • A compound that is composed of molybdenum (Mo) and oxygen (O) was produced in a lab by heating molybdenum over a Bunsen burner.
    5·2 answers
  • What energy source boils the water in geothermal energy.
    12·2 answers
  • Help it is due tomorrow ​
    15·2 answers
  • Alkaline earth metals are very reactive because of how many valence electrons ?
    15·1 answer
  • Ionization energy is a measure of the ability of atoms to attract electrons within a bond. True False
    11·1 answer
  • Why do atoms tend to be bonded to other atoms?
    8·2 answers
  • Pollen is produced in the anthers, which are the _______ organs of flowers.
    11·1 answer
  • Why does brining a turkey make it juicier?
    12·1 answer
  • A student observes that water in a pot on a burner becomes hotter explain how energy is conserved in the situation
    10·1 answer
  • Consider an atom having four distinct energy levels. If an electron is able to make transitions between any two levels, how many
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!