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
stellarik [79]
3 years ago
9

Use enthalpies of formation given in appendix c to calculate δh for the reaction br2(g)→2br(g), and use this value to estimate t

he bond enthalpy d(br−br).
Chemistry
1 answer:
Contact [7]3 years ago
3 0

Given reaction represents dissociation of bromine gas to form bromine atoms

Br2(g) ↔ 2Br(g)

The enthalpy of the above reaction is given as:

ΔH = ∑n(products)ΔH^{0}f(products) - ∑n(reactants)ΔH^{0}f(reactants)

where n = number of moles

ΔH^{0}f= enthalpy of formation

ΔH = [2*ΔH(Br(g)) - ΔH(Br2(g))] = 2*111.9 - 30.9 = 192.9 kJ/mol

Thus, enthalpy of dissociation is the bond energy of Br-Br = 192.9 kJ/mol

You might be interested in
Circle the solution with the highest concentration
choli [55]

Answer:

answer is option a..............

5 0
3 years ago
Read 2 more answers
NAME THESE ALCOHOLS. CH3CH2CH2CH2OH AND CH3CH(OH)CH3
ale4655 [162]
"CH3CH2CH2CH2OH " is known by the name of "n-butanol" and "CH3CH(OH)CH3" is known by the name of "<span>Isopropyl alcohol". These two given products are basically alcohols. I hope that this is the answer that you were looking for and the answer has actually come to your desired help. Thanks for joining brainly and getting your questions solved.</span>
3 0
3 years ago
If 6.0 x 10^23 atoms of aluminum weigh 27 g, calculate the mass of 1 atom of aluminum in picograms.
Georgia [21]

Answer:

4.5 \times 10^{ - 11} picograms

Explanation:

Please see attached picture for full solution.

3 0
3 years ago
Which of these is a benefit of fuel cell cars?
Otrada [13]

Answer:

A.

Explanation:

There are no vehicle emissions other than water vapor. This means no pertroleum products and no fossil fuels. :)

-Sienna Sushi

5 0
3 years ago
Read 2 more answers
Which fossil fuel accounts for 95% of consumption for transportation?
Ilia_Sergeevich [38]

Answer:

oil

Explanation:

i hope this helps :)

3 0
2 years ago
Other questions:
  • Because of ocean acidification, it is expected that in 2050 the mass of CaCO3 deposited annually in coral reefs will be 20% less
    9·1 answer
  • How can you tell whether one glass of water has more thermal energy another, identical glass of water?
    14·1 answer
  • What is the geometry name for Sb2? Is it polar or non-polar?
    8·1 answer
  • Use bond energies to calculate ΔHrxn Δ H r x n for the reaction. 2H2(g)+O2(g)→2H2O(g) 2 H 2 ( g ) + O 2 ( g ) → 2 H 2 O ( g )
    11·1 answer
  • Which is not an example of a code?
    7·1 answer
  • A sample of an unknown compound is vaporized at 130°C . The gas produced has a volume of 1280mL at a pressure of 1.00 atm and it
    8·1 answer
  • Science- what do you notice​
    6·1 answer
  • OOF OOF OOF OOF OOF OOF OOF OOF OOF
    15·2 answers
  • A sample of crude sodium iodide was analysed by the following rection.
    9·1 answer
  • 4Fe + 30₂ ⇒ Fe₂0₃
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!