Question

The density of a gas sample in a balloon is 1.50 g/l at 75°c. what is the density of this gas when the temperature is changed to 25°c at constant pressure?

Answer 1

At 25°C, a gas sample's density in the balloon is 4.500 g/L.

When density decreases, temperature increases. When more temperature increases, density reduces. When the temperature decrease, density increases.

When a substance is heated, the molecules move faster and slightly farther apart, taking up more space and causing the density to drop. When something is cooled, the molecules slow down and get a little closer together, taking up less space and becoming denser.

The density of a gas sample in a balloon = 1.50 g/L

Temperature = 75°C

Temperature increased = 25°C

The density of a gas sample in the balloon at 25°C = (1.50 × 75)/ 25

                                                                                      = 4.500 g/L

Therefore, the density of a gas is 4.500 g/L.

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