Question

The gas which has the density of 5.33 g/L at 8.21 atm pressure and 27°C is

1. N2

2. 02

3. CO2

4. CH4​

Answer 1

Answer:

it is an ideal gas n2 bcz here we got positive deviation

Answer 2

The answer is 1.N2

Explanation:

Here given:

Density(d): 5.33 g/L

Temperature (T): 27° C = 273° in K

Pressure (P)= 8.21 atm

Calculation:

From ideal gas equation we know that

$PV=nRT$

P=mRT/MV

P=dRT/M

M=dRT/P⇒1.25×0.0821×273÷1

M = 28 g

Nitrogen is a chemical element that has the symbol N and atomic number 7 and atomic mass 14.00674µ.

For nitrogen, the mass of the N2 molecule is

N2 = 14.01 + 14.01

N2 = 28.02

Thus, the molecular mass of a nitrogen molecule = 28 u

Hence, N is the correct answer.