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
ElenaW [278]
2 years ago
11

1 mol super cooled liquid water transformed to solid ice at -10 oC under 1 atm pressure.

Chemistry
1 answer:
Arada [10]2 years ago
4 0

Answer:

Explanation:

Given that:

number of moles of super cooled liquid water = 1

Melting enthalpy of ice = 6020 J/mol

Freezing point =0 °C = (0 + 273 K)= 273 K

The decrease in entropy of the system during freezing for 1 mol (i.e during transformation from liquid water to solid ice )  = - 6020 J/mol × 1 mol /273 K = -22.051 J/K

Entropy change during further cooling from 0 °C (273 K) to -10 °C (263 K)

\Delta \ S = \int\limits^{T_2}_{T_1}\dfrac{nC_p(s)dT}{T}

\Delta \ S = {nC_p(s)In \dfrac{T_2}{T_1}

\Delta \ S = {(1*37.7)In \dfrac{263}{273}

Δ S = -1.4 J/K

Total entropy change of the system = - 22.05 J/K - 1.4 J/K = - 23.45 J/K

Entropy change of universe = entropy change of the system+ entropy change of the surrounding

According to the second law of thermodynamics

Entropy change of universe  >0

SO,

Entropy change of the system + entropy change in the surrounding > 0

Entropy change in the surrounding > - entropy change of the system

Entropy change in the surrounding > - (- 23.53 J/K)

Entropy change in the surrounding > 23.53 J/K

b) Make some comments on entropy changes from the obtained data.

From the data obtained; we will realize that the entropy of the system decreases as cooling takes place when water is be convert to ice , randomness of these molecules reduces and as cooling proceeds , hence, entropy reduces more as well and the liberated heat will go into the surrounding due to this entropy of the surrounding increasing.

You might be interested in
What causes the Moon to revolve around Earth?
Mama L [17]

Answer:

A, Earth Gravity

Explanation:

7 0
2 years ago
Read 2 more answers
Which of the following has the electron configuration [ar] 4s23d5 ?
nignag [31]

Answer:

Mn Manganese

Explanation:

5 0
2 years ago
Potential energy is based on an objects
erma4kov [3.2K]

This is some information about the potential energy.

Explanation:

Please follow me...

3 0
3 years ago
Read 2 more answers
What type of organic molecule comprises the majority of a potato?
vladimir1956 [14]
Your answer should be Polysaccharides

MARK ME BRAINLIEST PLEASE!!!!!!!
8 0
3 years ago
Ruth has a garden in front of her house. She waters the plants every morning. After some time, the water from the plants and soi
IgorLugansk [536]

Answer:

<u><em>The correct answer is:</em></u>

<h3><u><em>Option D: Evapotranspiration  </em></u></h3>

<u><em>Water is removed both from the plants and the soil. Evapotranspiration is a process by which the water is removed from plants and ground and is added back into the atmosphere. From ground, water is removed in the form of evaporation from the soil. And from plants the water is removed by transpiration. Hence the term Evapotranspiration.</em></u>

3 0
3 years ago
Other questions:
  • Which statement correctly describes potassium iodide, KI? There is a one-to-one ratio of potassium ions to iodide ions. Potassiu
    9·2 answers
  • Complete each sentence using the drop-down menus.
    12·2 answers
  • Alkanes are hydrocarbons that contain _____.
    7·1 answer
  • One mole of which of these compounds contains two moles of hydrogen atoms?NaOH H2S NH3 CH4
    10·1 answer
  • What is light?
    6·1 answer
  • How is gold related to suns life cycle?
    10·1 answer
  • Which statement correctly compares what occurs when molecules absorb photons in the microwave region with what occurs when molec
    6·2 answers
  • Which of the following is not an ingredient for photosynthesis?
    14·2 answers
  • The electron configuration of an element is shown below.
    11·2 answers
  • Calculate the amount of heat deposited on the skin of a person burned by 1.00g of steam at 100.0C. Skin temperature is 37C. ΔHva
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!