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]
1 year ago
7

What mass of ch4 is consumed when 587. 9 kj of energy is evolved from the combustion of a mixture of ch4(g) and o2(g)? show the

set up and answer with unit
Chemistry
1 answer:
Juliette [100K]1 year ago
6 0

The mass of CH₄ that is consumed is 10.598 g.

<h3>What is enthalpy?</h3>

The enthalpy of a system is defined as the sum of the internal energy of a system and the energy that is produced due to its pressure and volume.

It is given by

H = U+PV

The following reaction takes place during the combustion of CH₄

CH_4(g)+2O_2(g)\rightarrow CO_2(g)+2H_2O(g)

Energy evolved during the combustion, E = 587.9 kJ

Enthalpy of combustion of methane, ∆H = 890.3 kJ

No of moles of CH_4 =\frac{energy evolved}{enthalpy of combustion}

= 587.9 /890

Mass of CH₄  that is consumed = no of moles × molar mass of CH₄

  = 587.9 /890 × 16

   = 10.598 g

The mass of CH₄  which is consumed is 10.598 g

Learn more about enthalpy:

brainly.com/question/14047927

#SPJ4

You might be interested in
How many grams of water will be produced when 1.6 moles of ethanol (CH3CH2OH) are burned completely? Enter a number only (no uni
AfilCa [17]

Answer:

86

Explanation:

The reaction that takes place is:

  • C₂H₅OH + 3O₂ → 2CO₂ + 3H₂O

First we <u>convert moles of ethanol to moles of water</u>:

  • 1.6 mol ethanol * \frac{3molH_2O}{1molEthanol} = 4.8 mol H₂O

Then we <u>convert moles of water to grams of water</u>, using its molar mass:

  • 4.8 mol H₂O * 18 g/mol = 86.4 g

So 84.6 grams of water will be produced.

4 0
3 years ago
Greenhouse gases in the atmosphere trap
Amanda [17]
Answer: C

Explanation: the light energy is from the sun which other than light energy, is equal to solar energy, confirming that the answer is C
8 0
3 years ago
Read 2 more answers
Carbon dioxide is treated with coke.​
Troyanec [42]
It reacts with it and creates carbon monoxide and the affects of it weakens
7 0
3 years ago
A sample of copper metal has a mass of 848 grams. How many moles of copper are in the sample? 13.34 mol Cu, 13.3 mol Cu, 12.9 mo
ANTONII [103]

Answer:

mol_{Cu}=13.34molCu

Explanation:

Hello,

In this case, as the atomic mass of coppe is 63.546 g/mol, with the given mass with can compute the moles as shown below:

mol_{Cu}=848gCu*\frac{1molCu}{63.546 gCu} \\\\mol_{Cu}=13.34molCu

Best regards.

8 0
3 years ago
Briefly describe how the apparatus work​
Bess [88]

ahjwjj kuehne wbveje uwieue jesus suuudb jesus jeiiien jwiiwbbii nwjjjjsk siiiusbitsisbgeu3 Hussey hey3 suu3n su3b euej

4 0
3 years ago
Read 2 more answers
Other questions:
  • A 52.0 mL volume of 0.25 M HBr is titrated with 0.50 M KOH. Calculate the pH after addition of 26.0 mL of KOH at 25 ∘C.
    14·1 answer
  • For the reaction A+B↽−−⇀C+D, assume that the standard change in free energy has a positive value. Changing the conditions of the
    8·1 answer
  • Identity which statement is true:
    12·1 answer
  • Calculate the density, in grams per liter, of carbon dioxide (CO2) gas at STP.
    10·2 answers
  • The compound trimethylamine, (CH3)3N, is a weak base when dissolved in water. Write the Kb expression for the weak base equilibr
    15·1 answer
  • 2Nal + Cl2 → 2NACI + I2
    15·1 answer
  • When 100 mL of 1.0 M Na3PO4 is mixed with 100 mL of 1.0 M AgNO3, a yellow precipitate forms and [Ag ] becomes negligibly small.
    15·1 answer
  • Which type of land biome is created and/orsubstained by a rain shadow
    14·1 answer
  • What changes in our sleep habits as we mature and why?
    6·1 answer
  • 4. A gas at 400 K is placed in a 4.0 L moveable piston. The gas
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!