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In thermodynamics analysis, a pure substance is that which
- a)has no dissolved impurities
- b)consists of only a single species
- c)may have a number of chemical species but the composition remains constant
- d)behaves as a perfect gas
Correct answer is option 'B'. Can you explain this answer?
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In thermodynamics analysis, a pure substance is that whicha)has no dis...
Explanation:
In thermodynamics, a pure substance is defined as a substance that consists of only a single species. This means that the substance is homogeneous and uniform in its chemical composition and physical properties throughout its entire mass.
Characteristics of Pure Substance:
A pure substance has the following characteristics:
Examples of Pure Substances:
Examples of pure substances include:
Importance of Pure Substance:
The study of pure substances is important in thermodynamics because it provides a basis for understanding the behavior of real substances, which are often mixtures of different chemical species. By analyzing the properties and behavior of pure substances, scientists and engineers can develop models and equations that can be used to predict the behavior of real substances under different conditions.
In thermodynamics, a pure substance is defined as a substance that consists of only a single species. This means that the substance is homogeneous and uniform in its chemical composition and physical properties throughout its entire mass.
Characteristics of Pure Substance:
A pure substance has the following characteristics:
- It is homogeneous and uniform in its chemical composition and physical properties throughout its entire mass.
- It has a fixed chemical composition and a unique set of physical properties, such as density, specific heat, and thermal conductivity, that are independent of the sample size and shape.
- It can exist in multiple phases, such as solid, liquid, and gas, depending on the temperature and pressure conditions.
- It can undergo phase changes, such as melting, freezing, vaporization, and condensation, without any change in its chemical composition.
Examples of Pure Substances:
Examples of pure substances include:
- Elements, such as iron, gold, and oxygen, which consist of only one type of atom.
- Compounds, such as water, carbon dioxide, and sodium chloride, which consist of two or more different types of atoms combined in fixed proportions.
Importance of Pure Substance:
The study of pure substances is important in thermodynamics because it provides a basis for understanding the behavior of real substances, which are often mixtures of different chemical species. By analyzing the properties and behavior of pure substances, scientists and engineers can develop models and equations that can be used to predict the behavior of real substances under different conditions.
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In thermodynamics analysis, a pure substance is that whicha)has no dissolved impuritiesb)consists of only a single speciesc)may have a number of chemical species but the composition remains constantd)behaves as a perfect gasCorrect answer is option 'B'. Can you explain this answer?
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