Argon 18 Gallium Confort A Sample Of 62.3cm3 Of Argon Gas At 18 Degrees C Was Contained At A Pressure Of 155k Pa In A J-shaped Tube?

A sample of 62.3cm3 of argon gas at 18 degrees C was contained at a pressure of 155k Pa in a J-shaped tube? - argon 18 gallium confort

with mercury. Later, the temperature changes. When the mercury has been adapted to switch the same pressure, the volume of argon gas to 61.2 cm3. What was the final temperature of argon?