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
salantis [7]
3 years ago
8

I NEED HELP PLEASE!!

Chemistry
1 answer:
VikaD [51]3 years ago
5 0

Answer:

The amount of heat absorbed is <u>5.183889 kJ</u>  .

Explanation:

In conversion of water to ice it rejects some heat while in conversion of ice to water it absorbs heat which is called latent heat which is given as 6.02 kJ/mol.

The amount of ice given is 15.5 g.

Converting it to moles as the latent heat is given in per moles:

\frac{given\\weight \\ (in\\grams)}{molecular\\weight\\(in\\grams)}

Molecular mass of Hydrogen (H) and Oxygen (O) is 1 u and 16 u respectively.

Molecular mass of water is 18 g ( H_{2} O ⇒  2*1+16=18 ).

mole = 15.5/18 ≈ 0.8611 moles

Therefore the amount of heat absorbed by 15.5 g of ice ( 0.8611 moles) = <em>Latent heat * moles </em>

Heat absorbed = 6.02*0.8611

             = 6.02*(15.5/18)

             ≈  5.183889 kJ

You might be interested in
Who discovered that geologic changes are cyclical?
slega [8]
I believe it was James Hutton
7 0
3 years ago
What happens as liquid water boils?
Licemer1 [7]

Answer:

C) The molecules become separated from each other.

Explanation:

5 0
3 years ago
1. a) Name two examples of good conductors?
Pachacha [2.7K]
A. good conductors - copper, aluminium

b. fair conductors -  carbon,human body

c. insulator  -   paper, wood
7 0
3 years ago
What causes the lithospheric plates to move
Charra [1.4K]

Answer:

The heat from the Earth's cores radioactive process makes the lithospheric plates move sometimes away or toward each other.

Hope it helps :)

7 0
3 years ago
Read 2 more answers
Where do Alkanes come from​
bagirrra123 [75]

Answer:

Alkanes naturally occur in crude oil and are a major component of many fuels and solvents derived from petroleum

3 0
3 years ago
Other questions:
  • A solid that forms when two liquids react with one another
    7·2 answers
  • Which of the following definitions of pesticides in NOT correct? a. Herbicides are chemicals that kill plants. b. Insecticides a
    14·1 answer
  • Need help asap got 5 minutes
    15·1 answer
  • The titration of an acid (H2A) with LiOH solution generates the following titration curve. What are the main components (more th
    9·1 answer
  • What is the molar mass of AlCl3?
    11·1 answer
  • Which group has different numbers of valence electrons
    7·1 answer
  • Most people use the _____ for intercity travel
    15·2 answers
  • calculate the freezing point of 3.46 gram of a compound X in 160 gram of benzene when a separate sample of X was vaporized it's
    14·1 answer
  • Which are functions of the stomata in the leaves of seed plants? Check all that apply.
    13·2 answers
  • Whichoneisaninsulator​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!