Question

Стальной балон наполнен азотом при температуре 12 (градусов), Давление азота 15 МПа. Найти плотность азота при этих условиях. Срочно нужно

Answer 1

M - молярная масса азота = 14*10^-3 кг/моль PV=MRT/m  разделим обе части на VP=(плотность азота)*RT/mПлотность азота= P*m/RTТ по КельвинуR=8.31 Остается только посчитать

Answer 2

Calculation of Nitrogen Density

To calculate the density of nitrogen at a temperature of 12 degrees Celsius and a pressure of 15 MPa, we can use the ideal gas law equation:

PV = nRT

Where: - P is the pressure of the gas (in Pascals) - V is the volume of the gas (in cubic meters) - n is the number of moles of gas - R is the ideal gas constant (8.314 J/(mol·K)) - T is the temperature of the gas (in Kelvin)

To find the density, we need to rearrange the equation to solve for density (ρ):

ρ = (n * M) / V

Where: - ρ is the density of the gas (in kg/m³) - M is the molar mass of the gas (in kg/mol)

To find the molar mass of nitrogen (N₂), we can use the periodic table. The molar mass of nitrogen is approximately 28.0134 g/mol.

Now let's calculate the density of nitrogen at the given conditions.

Calculation Steps:

Step 1: Convert the temperature from Celsius to Kelvin. - Given temperature: 12 degrees Celsius - Conversion formula: T(K) = T(°C) + 273.15 - Calculation: T(K) = 12 + 273.15 = 285.15 K

Step 2: Convert the pressure from MPa to Pascals. - Given pressure: 15 MPa - Conversion formula: 1 MPa = 1,000,000 Pa - Calculation: P(Pa) = 15 * 1,000,000 = 15,000,000 Pa

Step 3: Calculate the volume of the gas. - Since the volume is not given, we cannot calculate it directly. We need additional information to determine the volume.

Without the volume information, we cannot calculate the density of nitrogen at the given conditions. Please provide the volume of the gas or any additional information required to determine the volume.