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
slavikrds [6]
3 years ago
5

From these two reactions at 298 K, V2O3(s) + 3CO(g) → 2V(s) + 3CO2(g); ΔH° = 369.8 kJ; ΔS° = 8.3 J/K V2O5(s) + 2CO(g) → V2O3(s)

+ 2CO2(g); ΔH° = –234.2 kJ; ΔS° = 0.2 J/K calculate ΔG° for the following at 298 K: 2V(s) + 5CO2(g) → V2O5(s) + 5CO(g
Chemistry
1 answer:
gregori [183]3 years ago
7 0

Answer:

ΔG° = -133,1 kJ

Explanation:

For the reactions:

<em>(1) </em>V₂O₃(s) + 3CO(g) → 2V(s) + 3CO₂(g); ΔH° = 369,8 kJ; ΔS° = 8,3 J/K

<em>(2) </em>V₂O₅(s) + 2CO(g) → V₂O₃(s) + 2CO₂(g); ΔH° = –234,2 kJ; ΔS° = 0,2 J/K

By Hess's law it is possible to obtain the ΔH° and ΔS° of:

2V(s) + 5CO₂(g) → V₂O₅(s) + 5CO(g)

Substracting -(1)-(2), that means:

ΔH° = -369,8 kJ - (-234,2 kJ) = <em>-135,6 kJ</em>

ΔS° = - 8,3 J/K - 0,2 J/K =<em> -8,5 J/K</em>

Using: ΔG° = ΔH° - TΔS° at 298K

ΔG° = -135,6 kJ - 298K×-8,5x10⁻³kJ/K

<em>ΔG° = -133,1 kJ</em>

I hope it helps!

You might be interested in
Which term names a metamorphic change in rocks over a wide area from tectonic forces in Earth's crust and mantle? A. local metam
Pavlova-9 [17]
D is the answer. A, B,C are absurd. Doing a little word right there.
8 0
3 years ago
Read 2 more answers
Explain ionization suppressants as applied to atomic spectrometry
levacccp [35]

An ionization suppressor is an alkali metal capable of preventing ionization, which can be used in atomic spectroscopy to determine matter composition.

<h3>What is ionization?</h3>

Ionization refers to the phenomena capable of converting neutral atoms/molecules to electrically charged atoms/ions.

Ionization is a process by which radiation (e.g., alpha, beta, gamma rays) can pass energy to inert matter.

Some examples of ionization suppressors include salts of alkali metals (for example, potassium), which can be used in atomic spectroscopy to determine matter composition.

Learn more about ionization here:

brainly.com/question/1445179

8 0
2 years ago
Which of the following is a polyatomic ion?<br> O A. HCI<br> O B. Na<br> O C. PO,<br> O D. 52
timurjin [86]

I'm not the best with science but I believe the answer is B. Na.

8 0
3 years ago
Read 2 more answers
Balance the following equation____H2 + ____O2 → ____H2O
Snezhnost [94]

Answer:

2

Explanation:

Since it has to be 2H2+02→2H20 for it to be balanced.

3 0
3 years ago
Your role playing game party of high fantasy warriors arrives at a blacksmith to get new weapons forged. The blacksmith forges a
Drupady [299]

Answer:

THE FINAL TEMPREATURE OF IRON SWORD IS

1331°C

6 0
2 years ago
Other questions:
  • __________ force is the force of attraction and repulsion between subatomic particles.
    11·1 answer
  • Many pollutants from coal-fired power plants are properly managed today. Which of the following is currently considered to be th
    12·1 answer
  • What are insulated foam cups most likely made out of? polyethylene polystyrene nylon thread vulcanized rubber
    5·2 answers
  • The nucleus of the atom contains the greatest concentration of mass of an atom. which arrow is pointing at the nucleus of nitrog
    9·1 answer
  • Sketch the structure of the nitrogen containing product that is formed when ethalymine reacts with water.
    6·1 answer
  • How can describe electromagnetic waves with mechanical waves?
    11·1 answer
  • The total volume in milliliters of a glucose-water solution is given by the equation below: V = 1001.93 + 111.5282m + 0.64698m^2
    9·1 answer
  • Question given above
    7·1 answer
  • Which of the following is the correct Lewis dot diagram for Br found in LiBr.
    5·2 answers
  • How many valence electrons do the elements in column 4 have? Are these elements very reactive?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!