A 0.0625 tank contains 0.0925kg nitrogen at a gauge pressure of 5.17atm. Find the temperature of the gas in degree Celsius

-271.96 °C

Explanation:

We are given;

Volume of the tank as 0.0625 L Mass of nitrogen gas as 0.0925 kg or 92.5 g Pressure of the gas as 5.17 atm

we are required to calculate the temperature of the gas.

Step 1: Calculate the number of moles of nitrogen gas

Moles = Mass : Molar mass

Molar mass of nitrogen gas = 28.0 g/mol

Therefore;

Moles of N₂ = 92.5 g : 28.0 g/mol

= 3.304 moles

Step 2: Calculate the temperature of the gas;

According to the ideal gas equation;

PV = nRT, where n is the number of moles and R is the ideal gas constant, 0.082057 L. atm/mol. K

Rearranging the formula;

T = PV : nR

= (5.17 atm * 0.0625 L) : (3.304 moles * 0.082057)

= 1.19 K

But, °C = K - 273.15

Therefore;

T = 1.19 K - 273.15

= - 271.96 °C

Thus, the temperature of the gas will be - 271.96 °C