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3 years ago

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

Physics

1 answer:

slamgirl [31]3 years ago

3 0

<h3>Answer:</h3>

-271.96 °C

<h3>Explanation:</h3>

<u>We are given;</u>

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.

<h3>Step 1: Calculate the number of moles of nitrogen gas </h3>

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

<h3>Step 2: Calculate the temperature of the gas;</h3>

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

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