Question

Какой высоты столбик спирта пришлось бы использовать ,чтобы уравновесить значение нормального атмосферного давления? ДАЮ 50 БАЛЛЛОВ

Answer 1

Ответ: 12,66 м.

Объяснение:

Answer 2

Calculating the Height of a Column of Alcohol to Balance Normal Atmospheric Pressure

To calculate the height of a column of alcohol required to balance the value of normal atmospheric pressure, we can use the formula:

Pressure = Density × Gravity × Height

Where: - Pressure is the normal atmospheric pressure (approximately 101.3 kPa) - Density is the density of the liquid (in this case, the density of alcohol) - Gravity is the acceleration due to gravity (approximately 9.81 m/s^2) - Height is the height of the column of alcohol

Using this formula, we can solve for the height of the column of alcohol.

Density of Alcohol

The density of alcohol varies depending on the type of alcohol. For the purpose of this calculation, we will use the density of ethanol, which is commonly used in barometers and manometers.

The density of ethanol is approximately 0.789 g/cm^3 or 789 kg/m^3.

Calculating the Height

Substituting the known values into the formula, we can solve for the height of the column of alcohol:

101.3 kPa = (789 kg/m^3) × (9.81 m/s^2) × Height

Solving for Height:

Height ≈ 101.3 kPa / (789 kg/m^3 × 9.81 m/s^2)

Height ≈ 0.013 meters

So, the height of the column of alcohol required to balance the value of normal atmospheric pressure is approximately 0.013 meters.

I hope this helps! If you have any further questions, feel free to ask.