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
inna [77]
2 years ago
12

During the isothermal heat addition process of a Carnot cycle, 900 kJ of heat is added to the working fluid from a source at 400

oC. What is the entropy change of the working fluid? What is the entropy change of the source? What is the total entropy change for the process? [
Chemistry
1 answer:
Alinara [238K]2 years ago
7 0

Answer:

the entropy change of the fluid during the process process is is 1.337 kJ/K, the change for the source is -1.337 kJ/K and the total entropy change is 0

Explanation:

since the Carnot cycle is a reversible cycle, the entropy change is related with the heat exchanged through:

ΔS =∫dQ/T

since the temperature remains constant

ΔS =∫dQ/T=(1/T)*∫dQ = Q/T

Q= heat added to the system

T= absolute temperature = 400°C= 673 K

therefore

ΔS = Q/T = 900 kJ/ 673 K = 1.337 kJ/K

ΔS working fluid = 1.337 kJ/K

since the process is reversible, the entropy change of the universe (total entropy change)  is 0 (there is no entropy generation). thus

ΔS universe = ΔS working fluid + ΔS source = 0

ΔS source= -ΔS working fluid = -1.337 kJ/K

You might be interested in
You note that cells placed in a solution crenate. What could you definitively conclude about the solution?
lys-0071 [83]

Answer:it means the cell is an hypertonic or high concentration solution

Explanation: osmosis is defined as movement of water from a region of high concentration to a region of low concentration of water.

Now being in a hypertonic solution means the sorrounding solution in a high concentration of the solute which means water is in low in concentration , so osmotic pressure move water from the cell (which has a relatively higher water concentration )to it's sorrounding which has a lower concentration of water, resulting in the shrinking or crenation of the cells.

6 0
3 years ago
Read 2 more answers
How many equivalents are present in 13.5g of Al3+
gogolik [260]
Answer:

= 1.5 eq

Explanation:

One definition of an equivalent weight is that it is mass of a substance that gains or loses 1 mole of electrons.
Al3+ has lost 3 e-, so there are 3 equivalent weights in 1 mol Al3+.

1 mol Al3+ =3 eq. wts.
1 mol Al x(27 g / 1 mol)x(1 mol / 3 eq. wts.) = 9.0 g = 1 eq. wts.

13.5 g Al3 + x (1 eq.wt. / 9.0 g) = 1.5 eq
4 0
2 years ago
PLZZZ HELP!!! A chemist has synthesized a heavy element in the laboratory and found that it had this electron configuration:
Hitman42 [59]

Answer:

Darmstadtium! Happy to help! :)

5 0
3 years ago
What process takes place when hydrogen-3 and hydrogen-2 combine to form
vazorg [7]

Answer:

A alpha decay

hope this helps you :D

4 0
3 years ago
I need help with these 4
storchak [24]

Rift Valley Examples

  • East African
  • Rhine Rift Valley (Germany)
  • Baikal Rift Valley (Russia)

Rift Valley Facts/Characteristics

  • Bordered by fault zones and separating land masses
  • A portion of land that drops, forming a valley.
  • Formed as tectonic plates move.

Fossils - Examples

  • Bones
  • Shells
  • Exoskeletons
  • Stone imprints of animals.

Non Examples of Fossils

  • Stones
  • rocks
  • Some bones (If they are fossils they will be a lot heavier than other bones.

Hope this helps.

5 0
3 years ago
Other questions:
  • Is light a factor of respiration?
    14·1 answer
  • Can someone help me with 1 to 8 ? I will mark you Brainliest.
    6·1 answer
  • Zinc reacts with hydrochloric acid to produce zinc chloride and hydrogen. How many grams of HCl are required to produce 1,023 g
    15·1 answer
  • Convert 250.0F into C
    13·2 answers
  • Which equations represent precipitation reactions?
    7·1 answer
  • If you repeat an experiment and the results are very different from the results you got the first time, the next step would be t
    12·2 answers
  • What did the early atomic theory accomplish?
    14·1 answer
  • What is the standard cell notation of a galvanic cell made with magnesium<br> (Mg) and gold (Au)?
    9·1 answer
  • Astronauts go to live on the International Space Station for a period of ________ month(s). A one B three C six D nine
    5·1 answer
  • A 283 g silver figure of a polar bear is dropped into the 217 g aluminum cup of a well insulated calorimeter Containing 263 g of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!