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
Murljashka [212]
3 years ago
9

If the change of enthalpy of this reaction when proceeding left to right is +14 kcal, which chemical equation is correct?

Chemistry
1 answer:
bagirrra123 [75]3 years ago
7 0

Answer:

N₂O₄ + 14 kcal ⇄ 2NO₂.

Explanation:

Since the sign of ΔH determines either the reaction is exothermic or endothermic:

+ve, the reaction is endothermic.

-ve, the reaction is exothermic.

∵ The change of enthalpy of this reaction when proceeding left to right is + 14 kcal (+ ve sign).

∴ The reaction is endothermic, the heat is a part of the reacatnts in the reaction.

So, the reaction is:

N₂O₄ + 14 kcal ⇄ 2NO₂.

You might be interested in
On melting of ice , there is a decrease in volume instead of increase . Why ?
Oliga [24]
Because of the crystal structure of the ice, ice has lower density than liquid water. So the volume of the ice of same mass is greater than water. When melting, the volume will decrease.
8 0
3 years ago
The density of tin is 7.31 g/cm? What is the mass of the sample pictured below?
Oduvanchick [21]

Answer:

8.1 g/cm3.

Explanation:

5 0
3 years ago
How does the moon's physical characteristics make it easier for scientists to study than the sun?
Vlad1618 [11]

Answer:

1st question: The moon is closer to Earth so it is easier to see and visit.

2nd question: The moon has a week/month cycle instead of a day/night cycle.

3rd question: The corona

Explanation:

5 0
2 years ago
Complete the equation for respiration: Oxygen + ________ ---> carbon dioxide + energy + water *
Tom [10]

Answer:Sunlight

Explanation:

5 0
3 years ago
What is a chemical formula, and what does it tell you?
katrin2010 [14]

Explanation:

chemical formula tells you the specific elements included in the compound and the number of atoms of each. The letters in a chemical formula are the symbols for the specific elements. So for example, H means hydrogen.

7 0
2 years ago
Read 2 more answers
Other questions:
  • How many carbons would the following molecules contain?
    14·1 answer
  • What is the minimum amount of energy a plant<br>must absorb to produce 15.0 g of glucose?​
    9·1 answer
  • What affect will adding sugar have on the viscosity of water?
    11·2 answers
  • NEED URGENT HELP WITH SCIENCE HOMEWORK. TRIED MY BEST TO FIGURE OUT BUT COULDNT. I WILL MARK YOU BRAINLIEST!!
    8·1 answer
  • ¿para que se utilizan los métodos de fraccionamiento de fases?
    6·1 answer
  • Which explanation correctly describes why it is important for a cell’s surface-area-to-volume ratio to not be too small?
    13·1 answer
  • Can u pls help me with this question ​
    6·1 answer
  • Ionization of sodium dichromate​
    9·1 answer
  • How many salt and water would you use to prepare 10% salt solution?
    8·1 answer
  • Select oxidation numbers for the metals in each of the following coordination compounds. (a)K[Au(OH)4] (b)Na4[Fe(Cl)6]
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!