Steel is an alloy of one or more elements combined with which metal?
1 answer:
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Considering the Dalton's partial pressure, the total pressure in the mixture of gases is 1.371 atm.
The pressure exerted by a particular gas in a mixture is known as its partial pressure.
So, Dalton's law states that the total pressure of a gas mixture is equal to the sum of the pressures that each gas would exert if it were alone:
=
where n is the amount of gases in the mixture.
Dalton's partial pressure law can also be expressed in terms of the mole fraction of the gas in the mixture. So in a mixture of two or more gases, the partial pressure of gas A can be expressed as:
=
In this case, the partial pressure of gas H₂ can be expressed as:
=
You know:
= 0.48 atm
= 0.35
Replacing in the definition of partial pressure of gas H₂:
Solving:
=
= 1.371 atm
In summary, the total pressure in the mixture of gases is 1.371 atm.
Learn more about partial pressure: brainly.com/question/15302032
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Answer : The photon energy of this light in units of nanometers, (nm) is,
Solution :
Formula used :
where,
E = energy of photon =
h = Planck's constant =
c = speed of light =
= wavelength = ?
Now put all the given values in the above formula, we get:
conversion used :
Therefore, the photon energy of this light in units of nanometers, (nm) is,
Answer:
1 that is 100%
Explanation:
here it is given that Fermi energy of the of the metal = 5 e.V
work function= 4 e.V
we have to find the probability that an incident electron will tunnel out if E=109 V/m
WORK FUNCTION : work function is defined as the energy required to withdraw an electron completely from the metal surface.
now the energy per unit volume in electric field is given by
E=
E=
E=
in electron volt E=4.427\times 10^{6}joule × 6.24\times 10^{18}
E=
hence the applied energy per unit volume is greater than the work work function of electron so there is probability of 100% that electron will tunnel out