. the density (d) of a substance is an intensive property that is defined as the ratio of its mass (m) to its volume (v). densit
1 answer:
Density is intensive because it is the ratio of two extensive properties that is mass to volume.
<h3>What is Density ?</h3>Density is defined as mass per unit volume. S.I unit if density is kg/m³.
It is expressed as
Density = or
Intensive property is the property which does not depend on the size of the system. Intensive property can be easily identified. Intensive property is the independent property. The size does not change in this.
Example of intensive property are Density, Freezing point, melting point, colour, Lustre, etc.
<h3>What is Extensive property ?</h3>Extensive property is the property which depend on the substance. Extensive property cannot be easily identified.
Example of extensive property length, weight, volume, mass etc.
Thus from the above conclusion we can say that Density is intensive because it is the ratio of two extensive properties that is mass to volume.
Learn more about Density here: brainly.com/question/1354972
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Question: The density (d) of a substance is an intensive property that is defined as the ratio of its mass (m) to its volume (v)
density = or
Considering that mass and volume are both extensive properties, explain why their ratio, density is intensive.
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Answer:
- <em><u>C) The limiting reactant has the lowest ratio of moles available / coefficient in the balanced equation.</u></em>
Explanation:
Please, find attached a complete question to determine which of the statements is or are true for a limiting reactant in a chemical equation.
First, remember that the limiting reactant is the substance that is consumed completely while the excess reactant is the substance that does not react completely.
The limiting reactant is found comparing the stoichiometry ratio and the actual ratio between the reactants.
The stoichiometry ratio is found using the coefficientes of the chemical equation.
For illustration, assume the general chemical equation:
The stoichiometric ratio of the reactants is:
If the ratio of the available moles of substance A to the available moles of substance B is greater than the stoichiometric ratio, it means that there are more moles of the substance A than what is needed to react with the available moles of substance B, then A will be in excess and B will B the limiting reactant.
If, on the contrary, the ratio of the available moles of substance A to the available moles of substance B is is less than the stoichiometric ratio, then substance A is less than the necessary to make the all the moles of substance B react, meaning that the substance A will limit the reaction (it will be consumed completely), while the substance B will be in excess.
As for the options:
<em><u>A) The limiting reactant is has the lowest coefficient in a balanced equation.</u></em>
This is false, since it is not the magnitude of the coefficiente what determines the limiting reactant, but the comparison of the ratios.
<u><em>B) The limiting reactant is the reactant for which you have the fewest number of moles.</em></u>
This is false because it is not the number of moles what determines the limiting reactant , but the comparison of the ratios.
<u><em>C) The limiting reactant has the lowest ratio of moles available / coefficient in the balanced equation.</em></u>
This is true as proved below.
The stoichiometric ratio of the reactants is:
The actual ratio is:
Assume the first ratio is less than the second (which describes when the substance A is in excess and the limiting reactant is the substance B).
Change the relation to show the ratios of moles available of each substance to the cofficient in the chemical equation:
Then, in the scenary that the limiting reactant is the substance B, the ratio of the left is lower than the ratio of the right, which is the same that limiting reactant has the lowest ratio of moles available / coefficient in the balanced equation.
<em><u>D) The limiting reactant has the lowest ratio of coefficients in the balanced eqution/moles available.</u></em>
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This ratio is the inverse of the ratio of the previous statement, thus the relation is inverse, and, since the previous statement was true, this statement is false.
