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
Gekata [30.6K]
3 years ago
9

Determine the equilibrium vapor pressure of germanium metal at 508.0 C. The standard enthalpy of vaporization of germanium is 37

6.6 kJ/mol and the vapor pressure at 100 C is 1.6E-32 Pa. Be sure to express your final answer in Pa.
Chemistry
1 answer:
Anton [14]3 years ago
5 0

Answer:

P₂ = 5.550213 Pa

Explanation:

Given data:

Heat of vaporization = 376.6 KJ/mol  ( 376600 j/mol)

R = 8.3143 j mol⁻¹ K⁻¹

Temperature = T1 = 100 °C = 100 + 273 = 373 K

Temperature = T2 = 508.0 °C = 508.0+273 = 781 K

Pressure at 100°C= P1 = 1.6 × 10⁻³² Pa

Pressure at  508.0 °C = ?

Solution:

ln P₁/P₂ = ΔH /R ( 1/T₂ - 1/T₁)

ln (1.6 × 10⁻³² Pa) - ln (P₂) = 376600 j. mol⁻¹ /  8.3143 j mol⁻¹ K⁻¹ ( 1/T₂ - 1/T₁)

-73.212719 -  ln (P₂)  = 45295.45 (0.001280 - 0.002680)

-73.212719 -  ln (P₂) = 45295.45 (-0.00414)

-  ln (P₂) = -63.41363  + 73.212719

-  ln (P₂) = 9.799089

  P₂ = e⁻⁹°⁷⁹⁹⁰⁸⁹

  P₂ = 5.550213 Pa

You might be interested in
A student needed to make 100.0 mL of 0.20M NaOH solution. How many grams of sodium hydroxide does the student need to weigh out
GuDViN [60]

Answer:

0.08 g

Explanation:

100.0 mL = 0.10 L

Multiply the volume by the molarity to find moles.

0.10 L × 0.20 M = 0.002 mol

Convert moles to grams.

0.002 mol × 40 g/mol = 0.08 g

4 0
3 years ago
The steam engine in a train heats water until it becomes steam. The steam pushes pistons to move the train. The train is changin
Strike441 [17]
The answer to your question is option A.
8 0
3 years ago
Can anyone can answer practice problem exercise 6.5
NemiM [27]

Answer: Add more information please! Thanks!

Explanation:

6 0
3 years ago
Read 2 more answers
HELP ME PLEASE!!!
krok68 [10]

Answer:

Br (Bromine)

H (Hydrogen)

Explanation:

7 0
3 years ago
What Factors determine surface Gravity?
ddd [48]

Answer: Gravity depends on two main factors.

Explanation: Those factors are mass and distance. I hope this helps!

7 0
2 years ago
Read 2 more answers
Other questions:
  • What type of energy is present inside the bonds of atoms?
    6·2 answers
  • Nuclear energy can be used to power _______. a. street lights b. businesses c. homes d. all of the above Please select the best
    9·1 answer
  • What are 2 possible outcomes if a continental plate collides with another continental plate
    11·1 answer
  • 20 points
    9·1 answer
  • Mg(OH)2 + HCl --> MgCl2 + H2O
    14·1 answer
  • Lewis Diagrams- Grade 10 Chemistry<br><br> Please can someone explain this to me?
    10·1 answer
  • If the rate of formation (also called rate of production) of compound C is 2M/s in the reaction A ---&gt;2C, what is the rate of
    7·1 answer
  • using the balanced equation below how many grams of lead(||) sulfate would be produced from the complete reaction of 23.6 g lead
    5·1 answer
  • #
    8·1 answer
  • Which statement is not true for a magnetic field?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!