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
Lynna [10]
3 years ago
15

Compounds like CCl₂F₂ are known as chlorofluorocarbons, or CFCs. These compounds were once widely used as refrigerants but are n

ow being replaced by compounds that are believed to be less harmful to the environment. The heat of vaporization of CCl₂F₂ is 289 J/g. How many grams of this substance must evaporate to freeze 201 g of water initially at 33°C. (The heat of fusion of water is 334 J/g; the specific heat of water is 4.18 J/g-K.)Compounds like CCl₂F₂ are known as chlorofluorocarbons, or CFCs. These compounds were once widely used as refrigerants but are now being replaced by compounds that are believed to be less harmful to the environment. The heat of vaporization of CCl₂F₂ is 289 J/g. How many grams of this substance must evaporate to freeze 201 g of water initially at 33°C. (The heat of fusion of water is 334 J/g; the specific heat of water is 4.18 J/g-K.)
Chemistry
1 answer:
natta225 [31]3 years ago
7 0

Answer: Mass Of CFC that needs to evaporate for the freezing of water = 328.24 g

Explanation: Heat gained by the CFC = Heat lost by water

Heat lost by water = Heat required to take water's temperature to 0°c + Heat required to freeze water at 0°c

Heat required to take water's temperature from 33°c to 0°c = mCΔT

m = 201g, C = 4.18 J/(gK), ΔT = 33

mCΔT = 201 × 4.18 × 33 = 27725.94 J

Heat required to freeze water at 0°c = mL

m = 201g, L = 334 J/g

mL = 201 × 334 = 67134 J

Heat gained by CFC to vaporize = mH = 27725.94 + 67134 = 94859.94 J

H = 289 J/g, m = ?

m × 289 = 94859.9

m = 328.24 g

QED!!

You might be interested in
Which type of formula represents the simplest whole-number ratio of atoms of the elements in a compound?
sleet_krkn [62]
The empirical formula represents the simplest whole number shows the simplest whole number ratio of atoms in a compound.  An example of this is the empirical formula for glucose (C₆H₁₂O₆) is C₃H₆O₃.  

I hope this helps.  Let me know if anything is unclear.
5 0
3 years ago
Which of the following is the poorest conductor electricity
mojhsa [17]

Answer:

Fluorine

Explanation:

It is a non-metal does not conduct electricity

5 0
2 years ago
Any solid that forms in a liquid during a chemical reaction is called a
Nimfa-mama [501]
<span>it is called precipitant</span>
7 0
3 years ago
Read 2 more answers
Which has a higher average speed of molecules 95 degrees Celsius or 95 degrees Fahrenheit ​
shutvik [7]

Answer:

95(ninety five) degrees Celsius

6 0
3 years ago
Read 2 more answers
You are a researcher for a golf club manufacturer. You are given two identical looking cubes of a metal alloy. You are informed
Rashid [163]

Answer:

C.Melt both cubes and look for a broader range of melting temperatures. The one that melts over a broader range of temperatures is the amorphous solid.

Explanation:

Amorphous solids is one that do not have a fixed melting points but melt over a wide range of temperature due to the irregular shape hence its name. Contrariwise crystalline solids, have a fixed and sharp melting point.

This comes in handy to solve the riddle. We can characterise the pair with the melting point property.

7 0
3 years ago
Other questions:
  • Which substance can be broken down by chemical means?
    12·2 answers
  • The following atoms are all variations of the element carbon: 12C, 13C, and 14C due to differing
    15·1 answer
  • Let this be an easy 5 points for your brainly account all is ask for in return is a "thank you"
    7·1 answer
  • What is 5L to mL ( chemistry )
    13·2 answers
  • Which element, Phosphorus or Calcium, is more reactive? Why?
    6·1 answer
  • At what point will the heat flow stop?
    6·2 answers
  • Which of the following atoms will form an ion with the most negative charge?
    6·1 answer
  • Which of the following keeps satellite in orbit
    7·1 answer
  • Please help ! its urgent!!
    9·1 answer
  • Which describes the characteristics of a rain shadow on a mountainside?(1 point)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!