arrange these species by their ability to act as an oxidizing agent.you are currently in a ranking module. turn off browse mode
1 answer:
The arrangement of the species from best oxidizing agent to poorest oxidizing agent is:
- Ag⁺
- Ni²⁺
- Fe²⁺
- Al³⁺
Oxidizing agents are agents which oxidizes other species but are themselves reduced.
Oxidizing agents accept electrons from electron donors.
Non-metals are good oxidizing agents.
The oxidization potential of metals increases with increasing positive values of reduction potential.
In conclusion, oxidizing agents accept electrons are themselves reduced.
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Answer: a. A solid melts:
b. a vapor is converted to solid:
c. a liquid freezes:
d. A solid sublimes:
e. a vapor condenses to liquid :
f. a liquid boils:
g. dissolving a tablespoon of salt in water:
h. combustion of gasoline:
Explanation:
Entropy is the measure of randomness or disorder of a system. If a system moves from an ordered arrangement to a disordered arrangement, the entropy change is negative and vice versa.
a. A solid melts: The solid is converting to liquid, thus the randomness is increasing as the molecules are moving away and the intermolecular forces are getting weaker. Thus the entropy change is positive.
b. a vapor is converted to solid: The gas is converting to solid, thus the randomness is decreasing as the molecules are moving close and the intermolecular forces are getting stronger Thus the entropy change is negative.
c. a liquid freezes: The liquid is converting to solid, thus the randomness is decreasing as the molecules are moving close and the intermolecular forces are getting stronger. Thus the entropy change is negative.
d. A solid sublimes: The solid is converting to gas, thus the randomness is increasing as the molecules are moving away and the intermolecular forces are getting weaker. Thus the entropy change is positive.
e. a vapor condenses to liquid : The gas is converting to liquid, thus the randomness is decreasing as the molecules are moving close and the intermolecular forces are getting stronger. Thus the entropy change is negative.
f. a liquid boils: The liquid is converting to gas, thus the randomness is increasing as the molecules are moving away and the intermolecular forces are getting weaker. Thus the entropy change is positive.
g. dissolving a tablespoon of salt in water: The solid is converting to ions , thus the randomness is increasing as the ions can move freely. Thus the entropy change is positive.
h. combustion of gasoline: The liquid is converting to gas, thus the randomness is increasing as the molecules are moving away and the intermolecular forces are getting weaker. Thus the entropy change is positive.
Answer:
The reaction is not at equilibrium and reaction must run in forward direction.
Explanation:
At the given interval, concentration of NO =
Concentration of =
Concentration of NOBr =
Reaction quotient, , for this reaction =
species inside third bracket represents concentrations at the given interval.
So,
So, the reaction is not at equilibrium.
As therefore reaction must run in forward direction to increase
and make it equal to
.