Answer:
Aufbau Principle: Electrons occupy orbitals of lower energy first.
Pauli Exclusion Principle: An orbital can hold only two electrons and they must have opposite spin.
Hund's Rule: Electrons fill each orbital singly before any orbital gets a second electron.
for page two the answer is the first one
Units of the SI System
There are seven base units in the SI system:
the kilogram (kg), for mass
the second (s), for time
the kelvin (K), for temperature
the ampere (A), for electric current
the mole (mol), for the amount of a substance
the candela (cd), for luminous intensity
the meter (m), for distance
Answer:
[ N₂(g) ] = 0.016 M
Explanation:
N₂(g) + 3 H₂(g) ↔ 2 NH₃(g)
The equilibrium constant for the above reaction , can be written as the product of the concentration of product raised to the power of stoichiometric coefficients in a balanced equation of dissociation divided by the product of the concentration of reactant raised to the power of stoichiometric coefficients in the balanced equation of dissociation .
Hence ,
Kc = [ NH₃ (g) ]² / [ N₂(g) ] [ H₂(g) ]³
From the question ,
[ NH₃ (g) ] = 0.5 M
[ N₂(g) ] = ?
[ H₂(g) ] = 2.0 M
Kc = 2
Now, putting it in the above equation ,
Kc = [ NH₃ (g) ]² / [ N₂(g) ] [ H₂(g) ]³
2 = [ 0.5 M ]² / [ N₂(g) ] [ 2.0 M ]³
[ N₂(g) ] = 0.016 M .
Normal manual operation is actuation for a co2 system is accomplished by a person manually operating a control device and putting the co2 system through its complete cycle of operation.
<h3>What requirements exist for the operation and upkeep of CO2 systems?</h3>
- The liquid phase's water content must adhere to G6.2, Commodity Specifications for Carbon Dioxide, published by the Compressed Gas Association.
- There must be no more than 10 ppm of oil in the final product. 12.2.
<h3>What is the CO2 system's operating pressure?</h3>
System High-Pressure The majority of CO2 reclamation systems are high-pressure models that run at 750 lb/in 2 at around 55 °F. Since the pressure of CO2 is a function of its temperature, pressure rises as the temperature does.
Learn more about the CO2 system here:-
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