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
Maslowich
3 years ago
5

Calculate the work (kJ) done during a reaction in which the internal volume expands from 28 L to 51 L against an outside pressur

e of 4.9 atm. Calculate the work (kJ) done during a reaction in which the internal volume expands from 28 L to 51 L against an outside pressure of 4.9 atm. 11 kJ -11 kJ -39 kJ 39 kJ 0 kJ; No work is done.
Chemistry
1 answer:
Kamila [148]3 years ago
6 0

Answer:

-11 kJ

Explanation:

Step 1: Convert the pressure to Pascal (SI unit)

We will use the relationship 1 atm = 101,325 Pa.

4.9 atm \times \frac{101,325Pa}{1atm} = 5.0 \times 10^{5} Pa

Step 2: Convert the volumes to cubic meters (SI unit)

We will use the relationship 1 m³ = 1,000 L.

28 L \times \frac{1m^{3} }{1,000L} = 0.028 m^{3}

51 L \times \frac{1m^{3} }{1,000L} = 0.051 m^{3}

Step 3: Calculate the work done during the expansion of a gas

We will use the following expression.

W = -P \times \Delta V = -5.0 \times 10^{5} Pa \times (0.051m^{3} -0.028m^{3}) =-1.1 \times 10^{4} J

Step 4: Convert the work to kiloJoule

We will use the relationship 1 kJ = 1,000 J.

-1.1 \times 10^{4} J \times \frac{1kJ}{1,000J} =-11 kJ

You might be interested in
Consider the molecule BF3. (a) What is the electron config- uration of an isolated B atom? (b) What is the electron con- figurat
anzhelika [568]

For the given molecule, we are asked to give-

  1. The electron configuration of an isolated B atom
  2. The electron configuration of an isolated F atom
  3. Hybrid orbitals should be constructed on the B atom to make the B–F bonds in Boron tri flouride
  4. valence orbitals, if any, remain unhybridized on the B atom.
  • The electron configuration of an isolated B atom:

as atomic number of B is 5

electronic configuration will be [He] 2s² 2p¹

  • The electron configuration of an isolated F atom:

as atomic number of F is 9

electronic configuration will be  [He] 2s² 2p5

  • Hybrid orbitals should be constructed on the B atom to make the B–F bonds in Boron tri flouride will be sp2.

as the one s and two of p orbital from the valance shell will hybridised to make 3 hybrid orbital of B resulting in 3 B-F bonds.

  • valence orbitals, if any, remain unhybridized on the B atom will be 1

To know more about hybrisisation:

brainly.com/question/23038117

#SPJ4

8 0
9 months ago
Please help
aev [14]

Answer:

Copper(II) sulphate – sodium hydroxide reaction

The reaction between copper(Il) sulphate and sodium hydroxide solutions is a good place to start. If you slowly add one to the other while stirring, you will get a precipitate of copper(II) hydroxide, Cu(OH)2.

5 0
3 years ago
Which statement explains the relationship between the amount of energy it takes to break a bond and the amount of energy release
ad-work [718]

<em>The statement that gives the relationship between energy needed in breaking a bond and the one that is released after breakin</em>g is

The amount of energy it takes to break a bond is always less than the amount of energy released when the bond is formed.

  • Bond energy can be regarded as amount of energy that is required in  breaking a particular bond.

  • For a bond to be broken Energy will be  added and when a bond is broken there will be release of energy

  • Bond breaking can be regarded as endothermic process, it is regarded as endothermic  because there is a lot of energy required to be absorbed.

  • Where ever a bond is broken, there must be formation of another bond

  • Bond forming on the other hand can be regarded as exothermic process, since there is a release of  releases energy.

Therefore, more energy is required in breaking of bond compare to energy released after breaking of bond.

Learn more at : brainly.com/question/10777799?referrer=searchResults

6 0
2 years ago
A student mixes a white solid and a clear liquid together. The mixture turning orange is evidence of a chemical reaction.
yulyashka [42]

Answer:

true

Explanation:

7 0
2 years ago
Read 2 more answers
Why does hydrogen have a -1 oxidation state in the compound NaH?
ruslelena [56]

your answer will be :

B. <u>Na has a lower</u> <u>electronegativity than H</u>

because Na belongs to alkali metals which are least electronegative (most electro positive) but hydrogen is a non metal, it has higher electronegativity as compared to metals like Sodium (Na).

6 0
3 years ago
Other questions:
  • How should a stopper be handled after is has been removed from a reagent bottle?
    10·1 answer
  • For the following reaction, 5.91 grams of carbon monoxide are mixed with excess oxygen gas . The reaction yields 6.70 grams of c
    11·1 answer
  • What is the fate of glucose 6‑phosphate, glycolytic intermediates, and pentose phosphate pathway intermediates in this cell? Gly
    14·1 answer
  • The vapor pressure of chlorine dioxide, ClO2, is 155 Torr of at -22.75 °C and 485 Torr at 0.00 °C.
    5·1 answer
  • Using the picture below, compare and contrast the plant cell and the animal cell (What do they have different? What do they have
    13·1 answer
  • What is the lowest temperature a human can survive?
    15·1 answer
  • Give the structure for 2-amino -4-(1,2-dimethyl propyl )-3-hydroxy -7-oxo hept –3-en-5-yn-1-oic acid
    14·1 answer
  • Which of the isomeric alcohols having the molecular formula c5h12o are chiral which are achiral?
    11·2 answers
  • When physical properties are measured their identity will be changed. True or False​
    14·1 answer
  • How much more would a 20.0 gallon tank for propane
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!