Answer : The correct option is, [tex]2.1\times 10^5kPa[/tex]
Explanation :
To calculate the pressure of gas we are using ideal gas equation as:
[tex]PV=nRT[/tex]
where,
P = pressure of gas = ?
V = volume of gas = 0.046 L
n = number of moles of gas = 3.4
R = gas constant = 8.314 L.kPa/mol.K
T = temperature of gas = 298 K
Now put all the given values in the above formula, we get:
[tex]P\times (0.046L)=(3.4mol)\times (8.314L.kPa/mol.K)\times (298K)[/tex]
[tex]P=1.83\times 10^5kPa\approx 2.1\times 10^5kPa[/tex]
Therefore, the pressure of gas is, [tex]2.1\times 10^5kPa[/tex]