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
Anvisha [2.4K]
2 years ago
13

Approximately how much heat in kj was released from the combustion of the 1-g sample?

Chemistry
1 answer:
Katyanochek1 [597]2 years ago
3 0

Approximately, 21 kJ was released from the combustion of the 1-g sample.

<h3>Define Heat. What is the SI unit of Heat?</h3>

Because heat is a type of energy, the SI unit for heat is also joules (J), which is defined as the quantity of energy required to increase the temperature of a given mass by one degree. This is significant because heat is a form of energy. Heat is the result of the movement of kinetic energy within a material or an item, or from an energy source to a material or an object. Radiation, conduction, and convection are the three mechanisms through which such energy can be transferred. The joule is the S.I. unit for heat.

To learn more about Joule, visit:

brainly.com/question/25982371

#SPJ4

You might be interested in
When an excited electron in a hydrogen atom falls from ????=5 to ????=2, a photon of blue light is emitted. If an excited electr
poizon [28]

Answer:

n = 3

Explanation:

Given the formula for the transition energy of an atom with 1 electron:

E=-13.6*Z^{2}*(\frac{1}{n_{f}^{2}}-\frac{1}{n_{i}^{2}} ) eV

For the H transition n=5 to n=2:

E=-13.6*(\frac{1}{4}-\frac{1}{25} ) eV=-2.856 eV

Then we solve for nf with Z=2 (Helium)

n_{f}=\sqrt{\frac{n_{i}^{2}*Z^{2}*13.6 eV }{2.856eV*n_{i}^{2}+13.6eV*Z^{2}} }

n_{f}=\sqrt{\frac{4^{2}*2^{2}*13.6 eV }{2.856eV*4^{2}+13.6eV*2^{2}} }=3

Is near 3, actually the energy of the transitions are:

H (5⇒2) = -2.85 eV = 434 nm (Dark blue)

He (4⇒3) = -2.64 eV = 469 nm (Light blue)

I thought it was cool to see the actual colors. Included them.

4 0
3 years ago
Which example best represents an interaction of atmosphere and hydrosphere. A clouds form, b sunlight is reflected off the upper
olga55 [171]
B.sunligh 
is reflected off the upper atmosphere

3 0
4 years ago
ANSWER PLEASE! QUICLKY!
Ira Lisetskai [31]
Do you know what mixture it is talking about?
6 0
3 years ago
Read 2 more answers
5
babymother [125]

Answer:

The total amount of mechanical energy is merely the sum of the potential energy and the kinetic energy. This sum is simply referred to as the total mechanical energy

4 0
3 years ago
Why is plant able to continue to grow and develop once starch supply in the seed is gone?
horsena [70]
<span>They have chloroplasts and use light energy to make more food. I think might be wrong </span>
3 0
4 years ago
Other questions:
  • A 6.0 L sample of nitrogen gas contains 0.50 mole of a gas. If enough gas is added to make a total of 0.75 moles at the same pre
    5·1 answer
  • Identify the type of reaction described in the sentence below. then, write a chemical equation. be sure to specify the states of
    12·1 answer
  • When 231. mg of a certain molecular compound X are dissolved in 65. g of benzene (CH), the freezing point of the solution is mea
    7·1 answer
  • HELP PLEASE HELP ME ONLY 2 QUESTIONS
    9·1 answer
  • What is the boiling point of water and its melting point
    8·2 answers
  • Tricky please help !!!!!!!!
    10·1 answer
  • 2- How many electrons make an energy level stable (happy) ?
    13·2 answers
  • What is 0.151 g in scientific notation
    15·2 answers
  • A what is matter that is always composed of the same combination of atoms
    15·1 answer
  • Identify if the equation below is redox or not 2KOH (aq) + H₂S04(aq) H₂SO4(aq)+H₂O​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!