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
const2013 [10]
2 years ago
15

the reaction Br2(l)->Br2(g) has a deltaH=30.91 kJ and a deltaS=.0933 kJ/K. at what temperature does this reaction become spon

taneous? Below this temperature, is the forward reaction or the backward reaction favored?
Chemistry
1 answer:
schepotkina [342]2 years ago
4 0

Answer:

The temperature above which the reaction be spontaneous is 331.3 K.

Below this temperature; the backward reaction is the favored reaction.

Explanation:

  • We have an important relation from the third law of thermodynamics:

<em>ΔG = ΔH - TΔS</em>

<em>ΔG is the free energy change of the reaction,</em>

<em> ΔH is the enthalpy change of the reaction,</em>

<em>ΔS is the entorpy change of the reaction,</em>

  • <em>The reaction is spontaneous when ΔG is negative.</em>
  • and ΔG be negative when the value of (TΔS) is higher than the value of (ΔH).

<em>When ΔG = 0, ΔH = TΔS.</em>

For this reaction, ΔH = 30.91 KJ and ΔS = 0.0933 KJ/K.

  • The temperature above which the reaction be spontaneous is:

T = ΔH / ΔS = (30.91 KJ) / (0.0933 KJ/K) = 331.29 K ≅ 331.3 K.

<em>∴ The temperature above which the reaction be spontaneous is 331.3 K.</em>


<em>Below this temperature; the backward reaction is the favored reaction.</em>

You might be interested in
Which of the following correctly describes the law of conservation of energy
egoroff_w [7]
Mass and energy can not be created or destroyed, they may be able to just be converted, and neither one seems without the opposite. For this reason in closed systems, both mass and energy are conserved individually. " I hope this helps "
3 0
3 years ago
What does the skeletal system work with?
pshichka [43]

Answer:Shape

Explanation:The skeletal system works as a support structure for your body. It gives the body its shape, allows movement, makes blood cells, provides protection for organs and stores minerals. The skeletal system is also called the musculoskeletal system.

3 0
3 years ago
Read 2 more answers
Which element in the third period would you expect to have the larger atomic radius, sodium (Na) or Sulfur
miskamm [114]
Sodium will have a larger radius. Look up the atomic radius Trend
4 0
3 years ago
Look at the image pls. The question is there
ira [324]

Answer:

Look at the image pls. The question is there

:

4 0
2 years ago
What is nuclear fusion what role does it play in the sun
GalinKa [24]

Answer:

Nuclear fusion is when two atomic nuclei combine and form one nucleus. Nuclear fusion generates all of the Sun's energy. Inward pulling by the Sun's gravity is counteracted by outward pushing by the Sun's nuclear fusion; this balance keeps the sun from collapsing or exploding.

Explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • Can isotopes have different atomic numbers
    15·1 answer
  • Compare and contrast of cotton balls and pine cone
    14·1 answer
  • Physical and chemical properties, such as color, density, boiling point, solubility, conductivity, and flammability, A. do not d
    13·1 answer
  • A flask of fixed volume contains 1.00 mole of gaseous carbon dioxide and 88.0 g of solid carbon dioxide. The original pressure a
    5·1 answer
  • Why do covalent bonds not involve the transfer of electrons
    5·2 answers
  • Which material would a P wave travel through the slowest?<br><br> slate<br> water<br> mud<br> sand
    5·2 answers
  • Select the correct answer.
    13·2 answers
  • Which of these is a balanced chemical equation?
    10·2 answers
  • 4 NH3 +5 02 +4NO + 6H2O<br> When 70.25 grams of NH3 react, how many moles of H20 are produced?
    5·1 answer
  • How many grams of sodium hydroxide are needed to completely react with 50.0 grams of H2SO4?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!