What kind of spectrum is emitted by a hot low density gas?
emission-line spectrum A hot, low-density gas produces an emission-line spectrum. A continuous spectrum source viewed through a cool, low-density gas produces an absorption-line spectrum.
Does a low density hot gas produces a continuous spectrum?
A low-density, hot gas produces a continuous spectrum. A low density gas must be hot in order to produce an absorption line. A cool, thin gas produces absorption lines. The shorter a wave's wavelength, the greater its energy.
What type of spectrum is produced when heating hydrogen gas?
What type of spectrum is produced when heating hydrogen gas? A gas of hydrogen atoms will produce an absorption line spectrum if it is between you (your telescope+spectrograph) and a continuum light source and an emission line spectrum if viewed from a different angle.
What type of spectrum does hydrogen produce?
An element produces bright and dark lines with the same wavelengths. For example, hydrogen has three prominent lines with wavelengths of 434 nm, 486 nm, and 656 nm; these appear dark if the hydrogen is absorbing light, and bright if it is emitting light, but the same three wavelengths are seen in either case.
What emits a continuous spectrum?
Hot, dense light sources like stars, for example, emit a nearly continuous spectrum of light, which travels out in all directions and interacts with other materials in space. The broad range of colors that a star emits depends on its temperature.
What type of radiation does hot gas emit?
thermal radiation Quoting from the Wikipedia entry, "All normal (baryonic) matter emits electromagnetic radiation when it has a temperature above absolute zero. The radiation represents a conversion of a body's internal energy into electromagnetic energy, and is therefore called thermal radiation.
What produces a continuous spectrum?
Continuous spectra (also called thermal or blackbody spectra) arise from dense gases or solid objects which radiate heat. They emit radiation over a broad range of wavelengths, thus the spectra appear smooth and continuous.
Why is the emission spectrum of hydrogen a line spectrum?
The emission spectrum of atomic hydrogen has been divided into a number of spectral series, with wavelengths given by the Rydberg formula. These observed spectral lines are due to the electron making transitions between two energy levels in an atom.
What is meant by continuous spectrum?
Definition of continuous spectrum : a spectrum (as of light emitted by a white-hot lamp filament) having no apparent breaks or gaps throughout its wavelength range.
What is the transition spectrum of hydrogen?
<br> `therefore` For hydrogen spectrum transition is from n=2 to n=1.
Is the hydrogen spectrum continuous or discrete?
In the case of the hydrogen atom the spectrum has both a continuous and a discrete part, the continuous part representing the ionization.
What is continuous and discontinuous spectrum?
A continuous spectrum contains every wavelength between the wavelength on which the spectrum starts and the wavelength on which the spectrum ends. A discontinuous spectrum is a spectrum that contains gaps, holes, or breaks in terms of the wavelengths that it contains.
Which type of spectrum is produced by hot dense objects which type of spectrum is produced by hot dense objects absorption black body thermal Doppler emission?
continuous spectra Most continuous spectra are from hot, dense objects like stars, planets, or moons. The continuous spectrum from these kinds of objects is also called a thermal spectrum, because hot, dense objects will emit electromagnetic radiation at all wavelengths or colors.
What emits continuous spectrum?
Hot, dense light sources like stars, for example, emit a nearly continuous spectrum of light, which travels out in all directions and interacts with other materials in space. The broad range of colors that a star emits depends on its temperature.
What causes a discrete spectrum?
A discrete spectrum is a series of attainable values of a physical quantity having a positive gap between each value. This is opposite to the continuous spectrum. This type of spectrum occurs due to electrons falling from some bound quantum state to a lower energy state.
What is the linear spectrum?
quantum theory atoms is known as a line spectrum, because the radiation (light) emitted consists of a series of sharp lines. The wavelengths of the lines are characteristic of the element and may form extremely complex patterns.
What transition in the hydrogen spectrum would have the same wavelength as the Barmer transition?
Hence, the transition of Lyman series in hydrogen spectrum have the same wavelength as Balmer transition (n = 4;{rm{; to }};n = 2;{rm{ of;H}}{{rm{e}}^ + }) spectrum.
What transition in the hydrogen spectrum would have the same wavelength as the transition?
1 Answer. The transition from n = 2 to n = 1 in H-atom will have the same wavelength as the transition from n = 4 ta n = 2 in He+ ion.
Is hydrogen spectrum a discrete spectrum?
The quantum harmonic oscillator and the hydrogen atom are examples of physical systems in which the Hamiltonian has a discrete spectrum. In the case of the hydrogen atom the spectrum has both a continuous and a discrete part, the continuous part representing the ionization.
What is discrete and continuous spectrum?
Typically one can observe two distinctive classes of spectra: continous and discrete. For a continuous spectrum, the light is composed of a wide, continuous range of colors (energies). With discrete spectra, one sees only bright or dark lines at very distinct and sharply-defined colors (energies).
What is linear spectrum?
atoms is known as a line spectrum, because the radiation (light) emitted consists of a series of sharp lines. The wavelengths of the lines are characteristic of the element and may form extremely complex patterns. The simplest spectra are those of atomic hydrogen and the alkali atoms (e.g., lithium, sodium,…
What is continuous and line spectrum?
A continuous spectrum consists of all wavelengths within a certain range. This spectrum looks like a rainbow. In contrast, a line spectrum only consists of a few wavelengths. This spectrum is made of a few colored lines on a dark background. The lines in spectra are caused by electrons moving in between energy levels.
Which type of spectrum is produced by hot dense objects quizlet?
A hot, solid object will emit a continuous spectrum. Kirchhoff's Law #1 – The excited atoms within a hot dense object give off light of all colors (wavelengths) and produce a continuous spectrum — a complete rainbow of colors (range of wavelengths) without any spectral lines.
What kind of spectrum do you get if you look at a hot low density cloud against a dark cold background?
A low density, hot gas seen against a cooler background emits a BRIGHT LINE or EMISSION LINE spectrum. A low density, cool gas in front of a hotter source of a continuous spectrum creates a DARK LINE or ABSORPTION LINE spectrum.
What is continuous & discontinuous spectrum?
A continuous spectrum contains every wavelength between the wavelength on which the spectrum starts and the wavelength on which the spectrum ends. A discontinuous spectrum is a spectrum that contains gaps, holes, or breaks in terms of the wavelengths that it contains.
Is hydrogen spectrum continuous or discrete?
In the case of the hydrogen atom the spectrum has both a continuous and a discrete part, the continuous part representing the ionization.
What is continuous spectrum and line spectrum?
A continuous spectrum consists of all wavelengths within a certain range. This spectrum looks like a rainbow. In contrast, a line spectrum only consists of a few wavelengths. This spectrum is made of a few colored lines on a dark background. The lines in spectra are caused by electrons moving in between energy levels.
What transition in the hydrogen spectrum would have the same wavelength as the Balmer series of atomic hydrogen?
1 Answer. The transition from n = 2 to n = 1 in H-atom will have the same wavelength as the transition from n = 4 ta n = 2 in He+ ion.
Which of the following transition in H atom the one which has longest wavelength?
So, n = 6, p = 8 transition produces longest wavelength.
What transition in the hydrogen spectrum would have the same wavelength as the Balmer?
∴ The transition for n2 = 2 to n = 1 in hydrogen spectrum would have the same wavelength as Balmer transition n = 4 to n = 2 of He+ spectrum.