hydrogen gas collected by water displacement. what is the pressure with the H2 collected if temp 24degree C
To find the pressure of hydrogen gas collected by water displacement at a temperature of 24 degrees Celsius, you can use the Ideal Gas Law equation:
PV = nRT
Where:
P is the pressure (in Pascals)
V is the volume (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 (in Kelvin)
First, you need to convert the temperature from Celsius to Kelvin:
T(K) = T(C) + 273.15
T(K) = 24 + 273.15
T(K) = 297.15 K
Next, let's assume that you have collected a certain volume (V) of hydrogen gas during the water displacement. Since the question doesn't provide the volume, you will need to use the known volume of water displaced to calculate the volume of hydrogen gas.
Finally, substitute the values into the equation and solve for P:
P * V = n * R * T
Since the volume of the gas collected isn't given, I am unable to provide an accurate pressure calculation.
To calculate the pressure of hydrogen gas collected by water displacement at a given temperature, you would need to use the ideal gas law equation:
PV = nRT
Where:
P = Pressure of the gas (in units such as atm or Pa)
V = Volume of the gas (in liters or m³)
n = Number of moles of the gas
R = Ideal gas constant (0.0821 L·atm/mol·K or 8.314 J/(mol·K))
T = Temperature of the gas (in Kelvin)
In this case, you have collected hydrogen gas by water displacement and want to determine the pressure. The temperature you provided is 24 degrees Celsius. However, the ideal gas law requires temperature to be in Kelvin. Therefore, you need to convert the temperature from Celsius to Kelvin.
To convert Celsius to Kelvin, you add 273.15 to the Celsius value:
T (Kelvin) = T (Celsius) + 273.15
T (Kelvin) = 24 + 273.15 = 297.15 K
Now that we have the temperature in Kelvin, we can use the ideal gas law to calculate the pressure. However, to do so, we need additional information such as the volume of the collected hydrogen gas and the amount of hydrogen gas collected (number of moles).
Please provide the volume and the number of moles of hydrogen gas collected in order to calculate the pressure using the ideal gas law equation.
look up water vapor pressure at 24C. Subtract that from atmospheric pressure. The answer is then pressure of H2 collected (without water)
Ptotal = PdryH2 + PH2O
Look up vapor pressure H2O @ 24 C. That goes in for PH2O
Find total pressure. That comes from the barometer reading for thr pressure of the air in which the gas is collected.. Substitute and solve for pressure of the dry hydrogen gas.