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MaRussiya [10]
3 years ago
9

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Chemistry
1 answer:
elena-14-01-66 [18.8K]3 years ago
5 0

Answer:

why

Explanation:

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n-Butane fuel (C4H10) is burned with the stoichiometric amount of air. Determine the mass fraction of each product. Also, calcul
tia_tia [17]

Answer:

  1. 0.1852
  2. 0.0947
  3. 0.7201
  4. 3.0345 kg CO_{2} / Kg C_{4} H_{10}
  5. 15.3848 Kg air / kg C_{4} H_{10}

Explanation:

Molar masses of each product are :

Butane = 58 kg /kmol

Oxygen = 32 kg/kmol

Nitrogen = 28 kg/kmol

water = 18 kg/kmol

<u><em>1) Calculate the mass fraction of carbon dioxide </em></u>

= ( 4 * 44 ) / ( (5 * 18) + (4 *44 )+ (24.44 * 28) )

= 176 / 950.32

= 0.1852

<em><u>2) Calculate the mass fraction of water </u></em>

= ( 5 * 18 ) /  (( 5* 18 ) + ( 4*44) + ( 24.44 * 28 ))

= 90 / 950.32

= 0.0947

<em><u>3) Calculate the mass fraction of Nitrogen </u></em>

= (24.44 * 28 ) / ((4 * 44 ) + ( 24.44 * 28 ) + ( 5 * 18 ))

= 684.32 / 950.32

= 0.7201

<em><u>4) Calculate the mass of Carbon dioxide in the products</u></em>

Mco2 = ( 4 * 44 ) / 58  = 3.0345 kg CO_{2} / Kg C_{4} H_{10}

<u>5) Mass of Air required per unit of fuel mass burned </u>

Mair = ( 6.5 * 32 + 24.44 *28 ) / 58  = 15.3848 Kg air / kg C_{4} H_{10}

5 0
3 years ago
The number of electrons in an oxide ion O^2- is?
Tatiana [17]

10 electrons are in o^2

7 0
3 years ago
Identify how energy changed form so it could be use in each example.
Klio2033 [76]

Answer:

→A space heater warms a room⇒By converting electrical energy into heat energy.

→You eat dinner⇒Our  body uses chemical energy to break down the food

→A radio plays⇒By converting electrical energy into sound energy in an electric radio. And by converting chemical energy into sound energy in a radio which runs with a cell.

Explanation:

6 0
2 years ago
An electrolytic cell Group of answer choices consumes electrical current to drive a nonspontaneous chemical reaction. produces e
Rzqust [24]

Answer:

produces electrical current from electricity. produces electrical current from a nonspontaneous chemical reaction.

Explanation:

An electrolytic cell converts electrical energy into chemical energy. Here, the redox reaction is spontaneous and is responsible for the production of electrical energy. The reaction at the anode is oxidation and that at the cathode is reduction. Here, the anode is positive and the cathode is the negative electrode.

3 0
4 years ago
A dead fish has washed up on the beach and is starting to decay. Which compound produces the unpleasant odor from the decaying f
finlep [7]
The correct option in here is the first one: <span>pentane-1,5-diamine. This is also known as cadaverine. This is a common compund that produces that unpleasant odor from the fish. </span>
5 0
3 years ago
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