A certain volume of a gas at zero degrees Celsius and 1 atm pressure is 0.5 L. If the temperature is raised to 300 degrees Celsius by keeping the pressure constant, then what will be its final volume?
Correct answer: C. 1.05 L
- A. 1 L
- B. 0.1 L
- C. 1.05 L
- D. 1.50 L
Explanation
Using Charles's Law (V₁/T₁ = V₂/T₂), with temperatures in Kelvin. T₁ = 0°C = 273 K, and T₂ = 300°C = 573 K. V₂ = V₁(T₂/T₁) = 0.5 L × (573 K / 273 K) ≈ 1.05 L.
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Gas behaviour is explained through the kinetic molecular theory and the relationships among pressure, volume and temperature. Work includes STP, Boyle's and Charles's laws, absolute zero, the ideal gas equation, and the distinction between ideal and real gases, especially the effects of intermolecular forces and molecular volume.
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