Question

В сосуде объемом V=2л находятся газы: m1=6г углекислого газа (CO2) и m2=4г кислорода (О2)- при температуре t=27 градусов. найдите давление p смеси газов в сосуде.

Answer 1

К каждому из газов найти давление через Менделеева-Клапейрона.И потом сложить давления.Ниже фото.

Answer 2

Calculating the Pressure of Gas Mixture

To calculate the pressure of the gas mixture in the vessel, we can use the ideal gas law equation, which states:

PV = nRT

Where: - P is the pressure of the gas - V is the volume of the gas - n is the number of moles of the gas - R is the ideal gas constant - T is the temperature in Kelvin

First, we need to find the number of moles of each gas in the mixture.

Finding the Number of Moles of Each Gas

We can use the formula n = m/M, where: - n is the number of moles - m is the mass of the gas - M is the molar mass of the gas

For carbon dioxide (CO2): - m1 = 6g - The molar mass of CO2 is approximately 44.01 g/mol.

Using the formula, we can find the number of moles of CO2: n1 = m1 / M1 = 6g / 44.01 g/mol

For oxygen (O2): - m2 = 4g - The molar mass of O2 is approximately 32.00 g/mol.

Using the formula, we can find the number of moles of O2: n2 = m2 / M2 = 4g / 32.00 g/mol

Calculating the Total Number of Moles and Pressure

The total number of moles of gas in the mixture is the sum of the moles of CO2 and O2: ntotal = n1 + n2

Now, we can calculate the pressure of the gas mixture using the ideal gas law equation: P = (ntotal * R * T) / V

Where: - R is the ideal gas constant, which is approximately 0.0821 L·atm/(K·mol). - T is the temperature in Kelvin. To convert Celsius to Kelvin, we use the formula: T(K) = T(°C) + 273.15

Let's calculate the pressure of the gas mixture using the given values.