A certain solid substance, that is very hard, has a high melting point and is nonconducting unless melted is most likely to be:A
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Answer : The fuel value and the fuel density of pentane is, 49.09 kJ/g and respectively.
Explanation :
Fuel value : It is defined as the amount of energy released from the combustion of hydrocarbon fuels. The fuel value always in positive and in kilojoule per gram (kJ/g).
As we are given that:
Fuel value =
Molar mass of pentane = 72 g/mol
Fuel value =
Fuel value = 49.09 kJ/g
Now we have to calculate the fuel density of pentane.
Fuel density = Fuel value × Density
Fuel density = (49.09 kJ/g) × (0.626g/mL)
Fuel density = 30.73 kJ/mL =
Thus, the fuel density of pentane is
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.