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
Mademuasel [1]
3 years ago
10

The heat of vaporization for benzaldehyde is 48.8 kj/mol, and its normal boiling point is 451.0 k. use this information to deter

mine benzaldehyde's vapor pressure (in torr) at 61.5°c. report your answer to three significant digits.
Chemistry
1 answer:
user100 [1]3 years ago
7 0

Answer:

The vapor pressure of benzaldehyde at 61.5 °C is 70691.73 torr.

Explanation:

  • To solve this problem, we use Clausius Clapeyron equation: ln(P₁/P₂) = (ΔHvap / R) (1/T₁ - 1/T₂).
  • The first case: P₁ = 1 atm = 760 torr and T₁ = 451.0 K.
  • The second case: P₂ = <em>??? needed to be calculated</em> and T₂ = 61.5 °C = 334.5 K.
  • ΔHvap = 48.8 KJ/mole = 48.8 x 10³ J/mole and R = 8.314 J/mole.K.
  • Now, ln(P₁/P₂) = (ΔHvap / R) (1/T₁ - 1/T₂)
  • ln(760 torr /P₂) = (48.8 x 10³ J/mole / 8.314 J/mole.K) (1/451 K - 1/334.5 K)
  • ln(760 torr /P₂) = (5869.62) (-7.722 x 10⁻⁴) = -4.53.
  • (760 torr /P₂) = 0.01075
  • Then, P₂ = (760 torr) / (0.01075) = 70691.73 torr.

So, The vapor pressure of benzaldehyde at 61.5 °C is 70691.73 torr.

You might be interested in
10. Which of the following mirror is used to form smaller image
vitfil [10]

Answer:

Correct answer is b) convex mirror

Explanation:

A convex mirror, which bulges outward, reflects at a wider angle near its edges than at its center, creating a slightly distorted image that's smaller than actual size. Convex mirrors have many uses. The smaller size of the images means that you can see more with these surfaces, hence their use in safety mirrors.

3 0
4 years ago
A woman has a body mass of 53 kg. What is her mass in grams?
Alekssandra [29.7K]

Answer:

53000 grams

Explanation:

1kg to grams = 1000

therefore;

53 × 1000= 53000 grams

please rate brainliest

7 0
2 years ago
Read 2 more answers
In the balanced equation 4Fe + 3O2 = 2Fe2O3 how many atoms of iron (Fe) are reacting with every three molecules of oxygen (O2)?
Y_Kistochka [10]
This balanced equation shows us the ratios of reactants and products, so for every 3 oxygen molecules, we see that 4 iron atoms react as well. The answer is 4.
5 0
4 years ago
7. A spontaneous reaction occurs when the sign of free energy IS
il63 [147K]

Answer:

positive

Explanation:

3 0
2 years ago
Greg and Shawn are studying for a physical science test. Greg thinks that the kinetic energy of an object depends on the height
Ludmilka [50]
It should be mass and speed so they are both incorrect because the height doesn’t mean much, but what matters is how heavy the object is, and how fast it’s going to go.
4 0
3 years ago
Other questions:
  • How many meters are in 5.26 km
    8·1 answer
  • Number of C atoms in 0.500 mole of C
    11·1 answer
  • Can anyone help me with this asap?
    15·1 answer
  • Name the following species: (a) BrO-, (b) (HSO4)-, and (c) (C2O4)-2
    7·1 answer
  • What happens when water interacts with rock formations​
    13·1 answer
  • All living organisms are made out of cells. Select three cell parts that all cells contain.
    13·1 answer
  • Science<br><br> 0.00098 I need that converted to the scientific notation I need help quick
    7·1 answer
  • Pliz answer 1 &amp; 2 .... I'll tag best answer brainliest .... no spamming ​
    13·1 answer
  • Layers of sediment forming at the bottom of the ocean
    9·2 answers
  • What amount of moles does 60.5 L of carbon dioxide occupy at 50.5 kPa and 20 degrees C?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!