Which variable mentioned in ideal gas is assumed to be constant in other gas laws?
Correct answer: D. Number of motes
- A. Volume
- B. Temperature
- C. Pressure
- D. Number of motes
Explanation
While each of these variables (volume, temperature, pressure) can change in different gas laws, the number of moles (n) is generally assumed to be constant when applying ideal gas behavior in these laws. The ideal gas law itself, PV = nRT, encompasses all these variables and their relationships, making it a comprehensive equation for gas behavior.
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About Ideal Gas Equation
The ideal gas equation, PV = nRT, relates pressure, volume, amount and absolute temperature when gas particles are assumed to have negligible volume and no intermolecular forces. Applications include finding molar mass, density or an unknown gas variable, with careful use of Kelvin temperature and consistent units, and comparison with real-gas behaviour.
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