Question

Визначити кількість речовини N2 об'ємом 89.6л.

Answer 1

Ответ:

Объяснение:

Дано

V(N2) = 89,6 л

Vm=22,4 л/моль

Найти

n(N2)

n(N2) = V / Vm = 89,6 / 22,4 = 4 моль

Answer 2

To determine the quantity of substance (moles) of N2 in a given volume, we need to use the ideal gas law equation:

PV = nRT

Where: P = pressure (in atm) V = volume (in liters) n = number of moles R = ideal gas constant (0.0821 L atm / mol K) T = temperature (in Kelvin)

We need to know the pressure and temperature of the N2 gas to find the number of moles. Assuming the gas is at room temperature and standard atmospheric pressure, we can use the following values:

Standard atmospheric pressure (atm): 1 atm Room temperature (approximate) in Kelvin: 298 K

Now, rearranging the ideal gas law equation to solve for n (number of moles):

n = PV / RT

Substitute the given values:

V = 89.6 liters P = 1 atm R = 0.0821 L atm / mol K T = 298 K

n = (1 atm * 89.6 L) / (0.0821 L atm / mol K * 298 K)

n ≈ 3.49 moles

So, there are approximately 3.49 moles of N2 in a volume of 89.6 liters at standard atmospheric pressure and room temperature.