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
larisa [96]
3 years ago
7

The early workers in spectroscopy (Fraunhofer with the solar spectrum, Bunsen and Kirchhoff with laboratory spectra) discovered

what very significant fact about the spectra produced by hot gases, such as elements heated in a flame?
Physics
1 answer:
Anestetic [448]3 years ago
8 0

The hot gases produce their own characteristic pattern of spectral lines, which remain fixed as the temperature increases moderately.

<h3><u>Explanation: </u></h3>

A continuous light spectrum emitted by excited atoms of a hot gas with dark spaces in between due to scattered light of specific wavelengths is termed as an atomic spectrum. A hot gas has excited electrons and produces an emission spectrum; the scattered light forming dark bands are called spectral lines.

Fraunhofer closely observed sunlight by expanding the spectrum and a huge number of dark spectral lines were seen.  "Robert Bunsen and Gustav Kirchhoff" discovered that when certain chemicals were burnt using a Bunsen burner, atomic spectra with spectral lines were seen. Atomic spectral pattern is thus a unique characteristic of any gas and can be used to independently identify presence of elements.

The spectrum change does not depend greatly on increasing temperatures and hence no significant change is observed in the emitted spectrum with moderate increase in temperature.

You might be interested in
An elemental trip through europe
Mariana [72]
About what  elemental trip through europe
8 0
3 years ago
You do 45.0 joules of work and 3.00 seconds how much power do you use​
Arada [10]

Answer:

15 watt

Explanation:

Power is the rate at which work is done.

This means you divide the work done with the amount of time used to perform the work.

The formula for Power is : P = W/t  where;

W= work done in J = 45

t= time in seconds = 3 sec

P= 45/ 3 = 15 watt

8 0
2 years ago
What happens to metal railroad tracks during the heat of a summer day
Oksanka [162]
The railroad tracks will expand because the heat waves make them bigger

4 0
3 years ago
Read 2 more answers
A 2.20 kg mass is at the origin. A
Karolina [17]

Answer:

0

Explanation:

F1 = G•2.2•4.66/3² (pointed right)

F2 = G•2.2•4.66/3² (pointed left)

subtract the two to get zero

3 0
2 years ago
Read 2 more answers
Give an example of where you see the law of conservation of energy in your life
lesya692 [45]

Answer:

The law of conservation of energy can be seen in these everyday examples of energy transference: Water can produce electricity. Water falls from the sky, converting potential energy to kinetic energy.

The cue ball loses energy because the energy it had has been transferred to the 8 ball, so the cue ball slows down

Explanation:

8 0
3 years ago
Other questions:
  • The correctly balanced equation for H2O2 → H2O + O2 is
    10·1 answer
  • The warmest layer of Earth's atmosphere is the ___.
    7·1 answer
  • What is in the boron family with 3 valence electrons
    13·1 answer
  • An overhang hollow shaft carries a 900 mm diameter pulley, whose centre is 250 mm from the centre of the nearest bearing. The we
    10·1 answer
  • A sail boat moves north for a distance of 10 km when blown by a wind 30° east of south with the force of 5.00×10^4 N. how much w
    5·1 answer
  • Drag each label to the correct location on the chart. Each label can be used more than once.
    9·1 answer
  • What is the gain in gravitational potential energy of a body of weight 2000N as it rises from a height of 20m to a height of 25
    8·1 answer
  • Rahul runs a distance of 12
    14·1 answer
  • Getyour pointsssssssssssssssssssssss
    9·2 answers
  • A Newtonian fluid with a viscosity  drains through the space between two large parallel plates as shown in the figure. The gap
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!