Choose TRUE or FALSE for each of the following statements.A. A real gas can have intermolecular forces but then the Ideal Gas Law (PV=nRT) doesn't apply. B. Pressure is the force applied per unit area. C. The units on R do not need to match the units of P, V, and T. As long as a pressure, volume, and temperature are put into the equation, the answer will be correct. D. When temperature is used in any gas law, the temperature MUST be in Kelvin. E. For a mixture of ideal gases, the pressures can be added because for ideal gases, the identity of the gas doesn't matter.
Question
Choose TRUE or FALSE for each of the following statements.A. A real gas can have intermolecular forces but then the Ideal Gas Law (PV=nRT) doesn't apply. B. Pressure is the force applied per unit area. C. The units on R do not need to match the units of P, V, and T. As long as a pressure, volume, and temperature are put into the equation, the answer will be correct. D. When temperature is used in any gas law, the temperature MUST be in Kelvin. E. For a mixture of ideal gases, the pressures can be added because for ideal gases, the identity of the gas doesn't matter.
Solution
A. TRUE. Real gases do have intermolecular forces, and the Ideal Gas Law doesn't account for these forces.
B. TRUE. Pressure is indeed the force applied per unit area.
C. FALSE. The units on R (the gas constant) must match the units of pressure (P), volume (V), and temperature (T) for the equation to work correctly.
D. TRUE. In gas laws, temperature must always be in Kelvin to ensure accuracy.
E. TRUE. For a mixture of ideal gases, the total pressure is the sum of the partial pressures of each gas, regardless of the identity of the gases. This is known as Dalton's Law of Partial Pressures.
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