Question

Рассчитайте давление, оказываемое молекулами азота на стенки сосуда, если средняя квадратичная скорость молекул азота равен 500 м/с, а плотность азота 1,25 кг/м3.

Answer 1

Ответ:

дано V^2=0,5*10^6 м2/с2   p=1,25 кг/м3   P- ?

P= p*V^2/3=1,25*0,5*10^6/3=0.625 MПа

Объяснение:

Answer 2

Calculation of Pressure Exerted by Nitrogen Molecules

To calculate the pressure exerted by nitrogen molecules on the walls of a container, we can use the ideal gas law, which states that the pressure (P) of a gas is equal to the product of its density (ρ), the average squared velocity (v^2), and a constant (k) called the Boltzmann constant.

The formula for calculating pressure using the ideal gas law is:

P = ρ * v^2 * k

Given: - Average squared velocity of nitrogen molecules (v^2) = 500 m/s - Density of nitrogen (ρ) = 1.25 kg/m^3

We need to determine the value of the Boltzmann constant (k) to calculate the pressure.

Unfortunately, the search results provided do not contain the necessary information to directly determine the value of the Boltzmann constant. However, the Boltzmann constant is a well-known constant in physics and has a value of approximately 1.38 x 10^-23 J/K.

Using this value, we can calculate the pressure exerted by nitrogen molecules on the walls of the container.

Let's substitute the given values into the formula:

P = (1.25 kg/m^3) * (500 m/s)^2 * (1.38 x 10^-23 J/K)

Calculating this expression will give us the pressure exerted by nitrogen molecules on the walls of the container.

Please note that the Boltzmann constant is given in joules per Kelvin (J/K), so the resulting pressure will be in units of pascals (Pa).