An ideal-gas equation can be written as P = ρRT/M₀, where ρ and M₀ are respectively:
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An ideal-gas equation can be written as P = ρRT/M₀, where ρ and M₀ are respectively:

G1 Physics · Accepted Answer

Step 1: Ideal gas: PV = nRT = (m/M₀)RT, where m is the gas mass and M₀ its molar mass. Step 2: Divide by V: P = (m/V)(RT/M₀). Step 3: The quantity m/V is mass density ρ. Step 4: Therefore P = ρRT/M₀, and M₀ is molar mass. Final answer: (C).