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
iVinArrow [24]
3 years ago
15

Entropy means that _________.A. the quantity of usable energy declines with each transformationB. energy can be neither created

nor destroyedC. life should be impossibleD. it is not possible to observe an increase in molecular organization
Chemistry
1 answer:
son4ous [18]3 years ago
7 0

Answer:

answer A

Explanation:

A) the quantity of usable energy declines with each transformation → True . Since the entropy increases , the amount of energy that can not be converted to useful energy increases and since the total amount of energy is conserved, the quantity of useful energy decreases.

B) energy can be neither created nor destroyed → False in the context of entropy , since the energy is conserved regardless of the changes in entropy (First law → conservation of energy vs second law → increase of entropy)

C)  life should be impossible → False . Since the second law states that the entropy of the <u>universe </u>increases with time . Then the system (life) can experience a decrease in entropy  at the expense of a larger increase in entropy of the surroundings ( so the net increase is positive)

D) it is not possible to observe an increase in molecular organisation → False . Same as C. A system  can experience a decrease in entropy at the expense of a larger increase in entropy of the surroundings ( so the net increase is positive)

You might be interested in
What is the concentration of h+ ions in a 2.20 m solution of hno3?
kvv77 [185]

The question is improperly formatted.

What is the concentration of H+ ions in a 2.2 M solution of HNO3.

Answer:-

2.2 moles of H+ per litre

Explanation:-

M stands for molarity. 2.2 M means 2.2 moles of HNO3 is present per litre of the solution.

Now HNO3 has just 1 H in it's formula. HNO3 would give H+. So 2.2 moles of HNO3 would mean 2.2 moles of H+ per litre.

7 0
3 years ago
When sulfuric acid reacts with calcium hydroxide, calcium sulfate and water are produced. The balanced equation for this reactio
lisov135 [29]

Answer:

H₂SO₄ (aq)  +  Ca(OH)₂ (aq) → CaSO₄ (aq)  + H₂O (l)

Explanation:

When sulfuric acid reacts with calcium hydroxide, calcium sulfate and water are produced. The balanced equation for this reaction is:

3 0
3 years ago
The process in which an organic acid and an alcohol react to form an ester and water is known as esterification. Ethyl butanoate
egoroff_w [7]

Answer:

697 g

Explanation:

Ethanol (C₂H₅OH) and butanoic acid (C₃H₇COOH) react to form ethyl butanoate (C₃H₇COOC₂H₅) and water (H₂O).

C₂H₅OH + C₃H₇COOH → C₃H₇COOC₂H₅ + H₂O

The molar ratio of C₂H₅OH to C₃H₇COOC₂H₅ is 1:1. The moles of C₃H₇COOC₂H₅ produced from 6.00 moles of C₂H₅OH are:

6.00 mol C₂H₅OH × (1 mol C₃H₇COOC₂H₅/1 mol C₂H₅OH) = 6.00 mol C₃H₇COOC₂H₅

The molar mass of C₃H₇COOC₂H₅ is 116.16 g/mol. The mass corresponding to 6.00 mol is:

6.00 mol × (116.16 g/mol) = 697 g

7 0
3 years ago
(a) the temperature on a warm summer day is 87 °f. what is the temperature in °c? (b) many scientific data are reported at 25
olchik [2.2K]

Answers:

              (a)  30.55 °C

              (b) 298 K and 77°F

              (c)  204.44 °C and 477.44 K

              (d)  -320.8 °F and -196 °C

Explanation:

Converting °C into °F;

                                   °F  =  °C × 1.8 + 32

Converting °F into °C;

                                   °C  =  °F - 32 ÷ 1,8

Converting °C into K;

                                   K  =  °C + 273

Converting K into °C;

                                   °C  =  K - 273

8 0
3 years ago
What keeps the planets in orbit in our solar system
son4ous [18]
Gravitational pull coming from the sun
7 0
2 years ago
Other questions:
  • Which probing question lies within the scope of physics? A. Are fish in the open ocean attracted by underwater sounds? B. Does i
    14·2 answers
  • tell how a voltaic cell works. be sure to mention the various parts of the voltaic cell and what they have to do with how it wor
    7·1 answer
  • For the reaction ? Fe+? H2o ⇀↽? Fe3o4+? H2 , a maximum of how many grams of fe3o4 could be formed from 354 g of fe and 839 g of
    11·2 answers
  • Please help in Chemistry!!!! 15 points! I added a picture below...
    5·2 answers
  • A slice of Swiss cheese contains 41 mg of sodium.
    7·1 answer
  • The density of a material is a/n
    9·1 answer
  • The valency of sodium metal
    13·1 answer
  • Can someone help me I am stuck on this question it would mean the world if u helped me =) have a nice day!
    12·2 answers
  • 2. Describe briefly of some ways these organisms might interact with<br> each other. (5 points)
    9·1 answer
  • ATOMS, help me with this, and thank you for your help
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!