Which of these is an extensive property of a substance
One of the ways we can describe chemical substances is with extensive and intensive properties. This video will teach you about the difference between these two terms. You will also see some examples of each, and you'll have a chance to practice what you've learned at the end of the video. These are properties of a substance which are characteristic to the substance and it's identity.
You agree to mow someone's lawn for twenty dollars it's a fairly large yard. Some properties of matter depend on the size of the sample, while some do not. An extensive property is a property that depends on the amount of matter in a sample. The mass of an object is a measure of the amount of matter that an object contains. A small sample of a certain type of matter will have a small mass, while a larger sample will have a greater mass. Another extensive property is volume. The volume of an object is a measure of the space that is occupied by that object.
Which of these is an extensive property of a substance
The characteristics that enable us to distinguish one substance from another are called properties. A physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity. We can observe some physical properties, such as density and color, without changing the physical state of the matter observed. Other physical properties, such as the melting temperature of iron or the freezing temperature of water, can only be observed as matter undergoes a physical change. A physical change is a change in the state or properties of matter without any accompanying change in its chemical composition the identities of the substances contained in the matter. We observe a physical change when wax melts, when sugar dissolves in coffee, and when steam condenses into liquid water Figure 1. Other examples of physical changes include magnetizing and demagnetizing metals as is done with common antitheft security tags and grinding solids into powders which can sometimes yield noticeable changes in color. In each of these examples, there is a change in the physical state, form, or properties of the substance, but no change in its chemical composition. Figure 1. The change of one type of matter into another type or the inability to change is a chemical property.
Equations Carnot's theorem Clausius theorem Fundamental relation Ideal gas law Maxwell relations Onsager reciprocal relations Bridgman's equations Table of thermodynamic equations.
Physical or chemical properties of materials and systems can often be categorized as being either intensive or extensive , according to how the property changes when the size or extent of the system changes. The terms "intensive and extensive quantities" were introduced into physics by German mathematician Georg Helm in , and by American physicist and chemist Richard C. Tolman in By contrast, an extensive property or extensive quantity is one whose magnitude is additive for subsystems. Not all properties of matter fall into these two categories.
The characteristics that enable us to distinguish one substance from another are called properties. A physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity. We can observe some physical properties, such as density and color, without changing the physical state of the matter observed. Other physical properties, such as the melting temperature of iron or the freezing temperature of water, can only be observed as matter undergoes a physical change. A physical change is a change in the state or properties of matter without any accompanying change in its chemical composition the identities of the substances contained in the matter. We observe a physical change when wax melts, when sugar dissolves in coffee, and when steam condenses into liquid water Figure 1. Other examples of physical changes include magnetizing and demagnetizing metals as is done with common antitheft security tags and grinding solids into powders which can sometimes yield noticeable changes in color.
Which of these is an extensive property of a substance
All matter has physical and chemical properties. Physical properties are characteristics that scientists can measure without changing the composition of the sample under study, such as mass, color, and volume the amount of space occupied by a sample. Chemical properties describe the characteristic ability of a substance to react to form new substances; they include its flammability and susceptibility to corrosion. All samples of a pure substance have the same chemical and physical properties. For example, pure copper is always a reddish-brown solid a physical property and always dissolves in dilute nitric acid to produce a blue solution and a brown gas a chemical property. Physical properties can be extensive or intensive. Extensive properties vary with the amount of the substance and include mass, weight, and volume. Intensive properties , in contrast, do not depend on the amount of the substance; they include color, melting point, boiling point, electrical conductivity, and physical state at a given temperature.
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The general validity of the division of physical properties into extensive and intensive kinds has been addressed in the course of science. Nitroglycerin is very dangerous because it explodes easily; neon poses almost no hazard because it is very unreactive. For example, the square root of the volume is neither intensive nor extensive. A drop of hot cooking oil spattered on your arm causes brief, minor discomfort, whereas a pot of hot oil yields severe burns. Related Lessons. Online corrected version: — " Derived quantity ". Bibcode : JChEd.. Main article: Specific quantity. Molar entropy. Classify each of the following changes as physical or chemical: condensation of steam burning of gasoline souring of milk dissolving of sugar in water melting of gold Classify each of the following changes as physical or chemical: coal burning ice melting mixing chocolate syrup with milk explosion of a firecracker magnetizing of a screwdriver The volume of a sample of oxygen gas changed from 10 mL to 11 mL as the temperature changed. For example, species of matter may be transferred through a semipermeable membrane. System properties Note: Conjugate variables in italics Property diagrams Intensive and extensive properties. Measurable properties fall into one of two categories. Nineteen grams of fluorine will react with 1.
The characteristics that enable us to distinguish one substance from another are called properties.
Specific heat capacity at constant volume. On the other hand, some extensive quantities measure amounts that are not conserved in a thermodynamic process of transfer between a system and its surroundings. Specific enthalpy. History Culture. When the extensive property is represented by an upper-case letter, the symbol for the corresponding intensive property is usually represented by a lower-case letter. Caloric theory. Identify the following properties as either extensive or intensive. Intensive properties do not depend on the amount of matter present, for example, the density of gold. Chemistry Introduction to Chemistry Concepts and Terms. Figure 4.
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