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
Inessa [10]
3 years ago
7

For the of freezing liquid ethanol at a given temperature and pressure,A. ΔH is positive and ΔS is positive.B. ΔH is positive an

d ΔS is negative.C. ΔH is negative and ΔS is positive.D. ΔH is negative and ΔS is negative.
Chemistry
1 answer:
Ksivusya [100]3 years ago
3 0

Answer:

ΔH is negative and ΔS is negative.

Explanation:

Endothermic reaction -

The type of reaction in which energy is absorbed in the form of heat is known as endothermic reaction .

The reaction mixture usually get cooled after the reaction .( temperature decreases ) .

The sign of ΔH of an Endothermic  reaction is positive .

<u>For the of process of freezing the liquid ethanol  ,  energy in the form of heat is released and hence , exothermic reaction ΔH is negative  .</u>

<u>In the process of freezing , liquid is converted to solid , i.e. , the randomness reduces , and hence , entropy also decreases , hence , ΔS is negative .</u>

You might be interested in
Which probably best indicates that a compound contains an ionic bond
alex41 [277]
I’m thinking

It conducts electricity when Molten.
5 0
3 years ago
Fill in the flowing information for the element uranium
UkoKoshka [18]

Answer:

Period: 7

Family: actinides

Group: Actinide

Explanation:

6 0
3 years ago
Read 2 more answers
Write the position of metals, non - metals and metalloids in the periodic table.​
Nostrana [21]

Answer:

The metals are to the left of the line (except for hydrogen, which is a nonmetal), the nonmetals are to the right of the line, and the elements immediately adjacent to the line are the metalloids.

3 0
3 years ago
Write the symbol of magnesium and iron?​
jeyben [28]

The symbol of magnesium is mg and iron is Ir

7 0
3 years ago
Read 2 more answers
Please choose the correct sequence that describes the excitement of an atom.
Angelina_Jolie [31]
Answer: A because it’s correct
7 0
2 years ago
Other questions:
  • Calculate the pH and fraction of dissociation ( α ) for each of the acetic acid ( CH 3 COOH , p K a = 4.756 ) solutions. A 0.002
    11·1 answer
  • In the reaction ___h2+n2 -&gt;2 NH3, what coefficient should be placed in front of H2 to balance the reaction?
    14·2 answers
  • What is the price of 1 gallon of gasoline in U.S. dollars in France?
    9·1 answer
  • You give a sample containing .90 moles of a substance
    7·1 answer
  • Which model of the atom is the most accurate
    7·1 answer
  • What does solubility mean
    14·1 answer
  • A mixture of He He , N 2 N2 , and Ar Ar has a pressure of 24.1 24.1 atm at 28.0 28.0 °C. If the partial pressure of He He is 301
    6·1 answer
  • Is there a relationship between the number of black boxes and any of the water pumps
    14·1 answer
  • Gloria is making a model of an atom. She uses three different colors to represent the three basic particles that make up the ato
    9·1 answer
  • ___ ___ ___ ___ ___ P ___ ___ ___ ___ ___ ___ ___ mediums allow light to pass through
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!