The statements that are correct are ‘A large Keq value indicates that products are favored.’ And ‘A small Keq value indicates that the reverse reaction will occur very quickly.’ Having large Keq means that the concentration of the product is greater than the reactants and so products are favored. Having small Keq means that the concentration of the reactants is greater than the product.
A large Keq value indicates that products are favored.
B.a fish that eats smaller fish for its food
C.a giraffe that eats the leaves of trees
D.a plant that has insect larvae feeding on its roots
electron levels
orbits
energy levels
Certain conditions provide less than 10% yield of NH3 at equilibrium. Which statement describes this equilibrium?
This equilibrium has a low yield of NH3 and can be improved by adjusting the conditions and using the principles of Le Chatelier.
This equilibrium can be described as an equilibrium with a low yield of NH3. The fact that less than 10% yield of NH3 is obtained suggests that the forward reaction (N2(g) + 3H2(g) -> 2NH3(g) + energy) is not favored under the given conditions. To increase the yield of NH3, the conditions can be adjusted to shift the equilibrium towards the product side.
The Le Chatelier's principle can be applied to achieve a higher yield of NH3. One possible way is to increase the concentration of the reactants (N2 and H2) or decrease the concentration of the product (NH3). Another way is to increase the temperature, as this reaction is exothermic. By increasing the temperature, the equilibrium will shift in the reverse direction to consume the excess energy.
In summary, this equilibrium is characterized by a low yield of NH3, which can be improved by adjusting the conditions and using the principles of Le Chatelier.
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Mass of Neon : = 24.21564 g
Given
1.2 moles of Neon
Required
mass of Neon
Solution
The mole is the number of particles contained in a substance
1 mol = 6.02.10²³
Moles can also be determined from the amount of substance mass and its molar mass
Mol = mass : Molar mass
so mass of Neon(MM=20,1797 g/mol) :
= mol x MM
= 1.2 x 20,1797
= 24.21564 g