Question

Воздушный шарик, надули в помещении, завязали и вынесли на улицу зимой. Вскоре шарик уменьшился в размерах. Диффузией газа через стенки шарика пренебречь. 1)Как при этом изменилась масса газа в шарике? уменьшилась увеличилась не изменилась 2)Как изменилось среднее расстояние между молекулами газа в шарике? уменьшилось увеличилось не изменилось

Answer 1

Ответ:

Давление в шарике описывается уравнением Менделеева - Клайперона: P * V = m / M * R * T. При остывании шарика на морозе давление в нем меняться не будет так как уравновешивается атмосферным давлением. А вот объем шарика согласно формуле уменьшится.

Объяснение:

Ответ: давление не изменится

Answer 2

Changes in the Mass of Gas in the Balloon

When an inflated balloon is taken outside in cold weather, the gas inside the balloon will cool down. As a result, the average kinetic energy of the gas molecules decreases, causing them to slow down and move closer together. This decrease in kinetic energy leads to a decrease in the pressure of the gas inside the balloon. According to the ideal gas law, the pressure of a gas is directly proportional to its temperature. Therefore, as the temperature decreases, the pressure inside the balloon decreases as well.

Since the pressure inside the balloon decreases, the gas molecules will occupy a larger volume. This means that the gas inside the balloon will expand, causing the balloon to increase in size. Conversely, when the balloon is taken outside in warm weather, the gas inside the balloon will heat up, increasing the average kinetic energy of the gas molecules. This increase in kinetic energy leads to an increase in the pressure of the gas inside the balloon, causing the balloon to decrease in size.

In the given scenario, the balloon was taken outside in winter, which means that the gas inside the balloon cooled down. As a result, the pressure of the gas decreased, causing the balloon to decrease in size. Therefore, the mass of the gas in the balloon did not change. The mass of the gas in the balloon did not change [[1]].

Changes in the Average Distance Between Gas Molecules in the Balloon

The average distance between gas molecules in a balloon is determined by the volume of the balloon and the number of gas molecules present. When the balloon is inflated, the gas molecules spread out and occupy a larger volume, resulting in a larger average distance between them.

In the given scenario, when the balloon was taken outside in winter and the gas inside the balloon cooled down, the gas molecules slowed down and moved closer together. This caused the balloon to decrease in size, resulting in a smaller volume. As a result, the average distance between the gas molecules in the balloon decreased. The average distance between the gas molecules in the balloon decreased [[2]].

To summarize: 1) The mass of the gas in the balloon did not change. 2) The average distance between the gas molecules in the balloon decreased.