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tatyana61 [14]
3 years ago
13

Under equilibrium condition, what is the probability of an electron state being occupied if it is located at the Fermi level

Chemistry
1 answer:
Sav [38]3 years ago
8 0

Answer:

Hi

The Fermi Level is a term used to describe the set of electron energy levels at a temperature of absolute zero. Fermi's energy concept is important for the understanding of the electrical and thermal properties of solids. Both electrical and thermal processes involve energy values of a small fraction of an electron-volt. In thermal equilibrium, the net current of both electrons and holes is zero.

Explanation:

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Water only gets evaporated from the ocean. True or false?
krek1111 [17]

Answer:

false

Explanation:

7 0
3 years ago
2C2H2 + 5O2 → 4CO2 + 2H2O
Mumz [18]

Answer:

d. Two moles of carbon dioxide were produced from this reaction

Explanation:

The given chemical reaction can be written as follows;

2C₂H₂ + 5O₂ → 4CO₂ + 2H₂O

From the above chemical reaction, we have;

Two moles of C₂H₂ reacts with five moles of O₂ to produce four moles of CO₂ and two moles of H₂O

We have;

One mole of C₂H₂ will react with two and half moles of O₂ to produce <em>two moles of CO₂</em> and one mole of H₂O

Therefore, in the above reaction, when one mole of C₂H₂ is used, two moles of CO₂ will be produced.

8 0
3 years ago
The half-life of a reaction, t1/2, is the time required for one-half of a reactant to be consumed. It is the time during which t
ycow [4]

<u>Answer:</u> The half life of the reaction is 593.8 seconds

<u>Explanation:</u>

We are given:

Rate constant = 0.0016mol/L.s

The formula for determining the unit of 'k' is:

\text{Unit}=\frac{(Concentration)^{1-n}}{Time}

where, n = order of reaction

The unit of concentration is, M or mole/L

The unit of time is, second or 's'

Evaluating the value of 'n' from above equation:

mol.L^{-1}s^{-1}=\frac{(mol/L)^{1-n}}{s}\\\\n=0

The reaction is zero order reaction.

The equation used to calculate half life for zero order kinetics:

t_{1/2}=\frac{[A_o]}{2k}

where,

k = Rate constant = 0.0016mol/L.s

[A_o] = initial concentration = 1.90 mol/L

Putting values in above equation, we get:

t_{1/2}=\frac{1.90mol/L}{2\times 0.0016mol/L.s}=593.8s

Hence, the half life of the reaction is 593.8 seconds

5 0
3 years ago
In which type of chemical reaction due to a more reactants combined to form one product only
viktelen [127]

As we know that a type of chemical reaction in which two elements as reactants:

C(s) + O2(g) -----∆----> CO2(g)

Here, ∆ = Heat Energy.

Here, reactants = C(s) + O2(g)

and, product = CO2(g)

This type of reaction is known as combination reaction. It is also known as addition reaction.

7 0
3 years ago
Which piece of technology allowed scientists too look for life on mars ?
____ [38]
The Rover maybe, because they could look up close and see prints or leavings from life forms.
7 0
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