An element has an atomic mass of 69.66 amu. It has two
1 answer:
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Answer: The standard entropy of vaporization of ethanol is 0.275 J/K
Explanation:
Using Gibbs Helmholtz equation:
For a phase change, the reaction remains in equilibrium, thus
Given: Temperature = 285.0 K
Putting the values in the equation:
Thus the standard entropy of vaporization of ethanol is 0.275 J/K
The correct answer is D. Using the law of conservation of mass the number of atoms on each side of the equation should be equal. Through introspection, we find that there are 2 atoms on reactant side as opposed 3Cl atoms on product side. If we add a coefficient of 3 on
we get
.
Now there are 6Cl atoms on reactant side and 2 on product side, hence we add a coefficient of 2 on both and
. The balanced chemical equation is,
<u>Answer:</u> The correct answer is standard reduction potential
<u>Explanation:</u>
Oxidation reaction is defined as the reaction in which an atom looses its electrons. The oxidation number of the atom gets increased during this reaction.
Reduction reaction is defined as the reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.
Standard reduction potential is defined as the tendency of a chemical substance to get reduced. It is denoted as
The substance having highest positive potential will always get reduced and will undergo reduction reaction.
Hence, the correct answer is standard reduction potential