A gas at 300 K occupies 2 L. If the temperature is raised to 600 K at constant pressure, the volume becomes:
A. 6 L
B. 1 L
C. 4 L
D. 2 L
Answer: Option C
Solution (By JKExamLibrary)
Charles' law: V₁/T₁ = V₂/T₂. V₂ = V₁ × T₂/T₁ = 2 L × 600 K / 300 K = 4 L. Volume doubles as absolute temperature doubles. Note: must use Kelvin, not Celsius. (600 K = 327°C). If mass and pressure are constant, volume is directly proportional to absolute temperature.
Explanation:
Soap is made by saponification: fat/oil (triglyceride) + NaOH → glycerol + sodium salt of fatty acid (soap). This is an alkaline hydrolysis. HCl would break down differently. NaCl is used to precipitate soap (salting out). Ethanol is solvent.
Explanation:
Real gases deviate from ideal behavior due to intermolecular forces and molecular volume. Ammonia (NH3) has strong intermolecular hydrogen bonding and a relatively large molecular size compared to small, non-polar gases like He, H2, and N2. Therefore, ammonia exhibits the greatest deviation from ideal gas behavior.
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