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
Nat2105 [25]
3 years ago
8

Which energy profile best shows that the enthalpy of formation of CS2 is 89.4 KJ/mol?

Chemistry
2 answers:
Anna11 [10]3 years ago
7 0

Answer:

Option C. Energy Profile D

Explanation:

Data obtained from the question include:

Enthalpy change ΔH = 89.4 KJ/mol.

Enthalpy change (ΔH) is simply defined as the difference between the heat of product (Hp) and the heat of reactant (Hr). Mathematically, it is expressed as:

Enthalpy change (ΔH) = Heat of product (Hp) – Heat of reactant (Hr)

ΔH = Hp – Hr

Note: If the enthalpy change (ΔH) is positive, it means that the product has a higher heat content than the reactant.

If the enthalpy change (ΔH) is negative, it means that the reactant has a higher heat content than the product.

Now, considering the question given, the enthalpy change (ΔH) is 89.4 KJ/mol and it is a positive number indicating that the heat content of the product is higher than the heat content of the reactant.

Therefore, Energy Profile D satisfy the enthalpy change (ΔH) for the formation of CS2 as it indicates that the heat content of product is higher than the heat content of the reactant.

VikaD [51]3 years ago
4 0
The correct answer is Option C
You might be interested in
How many moles of carbon are in 3.7 moles of c8h11no2
sleet_krkn [62]

Answer:- 29.6 moles of carbon.

Solution:- We have been given with 3.7 moles of C_8H_11NO_2 and asked to calculate the moles of C.

Looking at the formula of the compound, there are 8 carbons in it means 1 mol of he compound has 8 moles of C. So, if we multiply the given moles of the compound by 8 then we get the moles of C.

3.7molC_8H_11NO_2(\frac{8molC}{1molC_8H_11NO_2})

= 29.6 mol C

Hence. there are 29.6 moles of C in 3.7 moles of  C_8H_11NO_2  .

8 0
3 years ago
. What is the mass, in grams, of a sample of 7.83 × 1024 atoms of helium (He)?
erica [24]
Moles He = 7.83 x 10^24 / 6.02 x 10^23 =13.0 

<span>mass He = 13.0 mol x 4.00 g/mol = 52.0 g</span>
6 0
3 years ago
Which of Graphs 1 correctly represents the relationship between the pressure and volume of a gas?
Alborosie

Answer:

D

Explanation:

pressure is inversely proportional to gas volume

4 0
2 years ago
Sulfur and fluorine react in a combination reaction to produce sulfur hexafluoride:
mixer [17]

In a particular experiment, the per cent yield is 79.0%. This means that in this experiment, a 7.90-g sample of fluorine yields is 7g of SF6.

<h3>How is Sulphur hexafluoride formed?</h3>

Sulfur Hexafluoride is a disparity agent formed of an inorganic fluorinated inert gas comprised of six fluoride atoms bound to one sulfur atom, with possible diagnostic activity upon imaging.

Thus, a sample of fluorine yields 7g of SF6.

To learn more about Sulfur Hexafluoride click here;

brainly.com/question/15024952

#SPJ1

3 0
2 years ago
Hypothesize How much do you think an apple weighs?
umka2103 [35]

Answer: 3 pounds

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Match the atoms which might substitute for one another. Match the items in the left column to the items in the right column.
    8·2 answers
  • A student using this technique finds that when putting a hot piece of metal into a calorimeter which contains 35.070g of water,
    7·1 answer
  • Would the following errors increase, decrease, or have no effect on the calculated moles of gas collected in the experiment? Exp
    11·1 answer
  • A 73.6 g sample of aluminum is heated to 95.0°C and dropped into 100.0 g of water at 20.0°C. If the resulting temperature of the
    8·1 answer
  • Which of the following can be the product of a neutralizationaction?
    9·2 answers
  • When silver coins are found in ancient shipwrecks, they are coated with a black crust. What question could you ask to help you d
    7·1 answer
  • Simplify (4f+13g)(2w)
    8·2 answers
  • Calculate the [H3O+] of an aqueous solution that is 1.94 x 10-7 Min OH.
    14·1 answer
  • Why do elements in group 8A (the noble gases) tend not to gain or lose electrons?
    11·1 answer
  • Calculate the molecular mass of Co(NO3)2<br>with steps please
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!