Consider a sample of neon gas in a container fitted with a movable piston (assume the piston is massless and frictionless). The temperature of the gas is increased from 20.0°C to 40.0°C. The density of neon

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When the temperature of a gas increases, its volume increases if the pressure is kept constant (according to Charles's law). Since the density of a gas is inversely proportional to its volume (density = mass/volume), an increase in volume due to the temperature rise will lead to a decrease in density. However, the percentage decrease in density would not be very large for a temperature change from 20.0°C to 40.0°C, hence it decreases less than 10%.

Consider a Sample of Neon Gas in a Container Fitted