If the matter in a given system at a given condition is divided into two equal parts, then the value of the extensive properties will become:
Correct answer: B. Half of the original value
- A. Double of the original value
- B. Half of the original value
- C. Remain the same as the original value
- D. One-fourth of the original value
- E. Heat of formation
Explanation
Thermodynamic properties can be divided into two general classes, intensive and extensive properties. Thus, if a quantity of matter in a given state is divided into two equal parts, each part will have the same value of the intensive property as the original and half the value of the extensive property.
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About System, Surroundings and State Functions
A system is the part of the universe under study, while everything outside it is the surroundings; the boundary separates them. State functions such as pressure, temperature, volume, internal energy and enthalpy depend only on the state, unlike heat and work, which depend on the path taken.
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