Reaction:

Magnesium is a stronger reducing agent than copper and is thus able to reduce copper(II) oxide.
Products of the reaction: Magnesium oxide and metallic copper.
<u>Answer:</u> The final volume will be 14.85 L.
<u>Explanation:</u>
To calculate the final volume when temperature increases, we use Charles' Law.
This law states that volume is directly proportional to the temperature of the gas if number of moles and pressure remains constant.

where,
= Initial volume and temperature
= Final volume and temperature
We are given:

Putting values in above equation, we get:


Hence, the final volume of the gas is 14.85L
It shows mass is not created nor lost but re arranged