What type of heat transfer warms our oceans and atmosphere
1 answer:
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Answer:
Likely (indium.)
Explanation:
Number of atoms: .
Dividing, , the number of atoms by the Avogadro constant,
, would give the number of moles of atoms in this sample:
.
The mass of that many atom is . Estimate the average mass of one mole of atoms in this sample:
.
The average mass of one mole of atoms of an element ( in this example) is numerically equal to the average atomic mass of that element. Refer to a modern periodic table and look for the element with average atomic mass
. Indium,
, is the closest match.
Answer : (b) The rate law expression for the reaction is:
Explanation :
Rate law : It is defined as the expression which expresses the rate of the reaction in terms of molar concentration of the reactants with each term raised to the power their stoichiometric coefficient of that reactant in the balanced chemical equation.
The general reaction is:
The general rate law expression for the reaction is:
where,
a = order with respect to A
b = order with respect to B
R = rate law
k = rate constant
and
= concentration of A and B reactant
Now we have to determine the rate law for the given reaction.
The balanced equations will be:
In this reaction, and
are the reactants.
The rate law expression for the reaction is:
or,