Describe the classification of electromagnetic radiation.
1 answer:
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Answer : This reaction is an exothermic reaction.
Explanation :
Endothermic reaction : It is defined as the chemical reaction in which the energy is absorbed from the surrounding.
In the endothermic reaction, the energy of reactant are less than the energy of product.
Exothermic reaction : It is defined as the chemical reaction in which the energy is released into the surrounding.
In the exothermic reaction, the energy of reactant are more than the energy of product.
Enthalpy of reaction : It is the difference between the energy of product and the reactant. It is represented as .
The balanced chemical reaction will be:
From the reaction we conclude that the heat energy is released during the reaction that means this reaction is an exothermic reaction.
Hence, the reaction is an exothermic reaction.
Answer:
a) If the reaction has a large negative ΔGo value, the reaction must reach equilibrium at a small extent of reaction value
d) ΔGo and ΔG have the same magnitude, they just have opposite signs.
Explanation:
The fraction of the total heat energy if a system that does useful work is known as Gibb's free energy (G) and the change from the initial to final state is designated by . It is observed that the values of
changes with experimental conditions such as temperature , pressure , concentration etc.
is the standard free energy change which is a balance of two natural tendencies of any system.
- Minimization of potential energy or enthalpic factor
Maximization of disorderliness or entropic factor
Mathematically; =
-
Thus; from above mentioned, the statements that are true about ΔG⁰ and ΔG are:
ΔG⁰ and ΔG can have different values, they don't even have to have the same sign
For a reaction that reaches equilibrium, the minimum value of free energy must be at the equilibrium point
If ΔG⁰ , measured at an extent of reaction = 0.5, is positive, the sign for ΔG when the extent of reaction = 0.80 is also positive.
while the false statements include:
a) If the reaction has a large negative ΔG⁰ value, the reaction must reach equilibrium at a small extent of reaction value
d) ΔG⁰ and ΔG have the same magnitude, they just have opposite signs.