Answer: 2.78 L
Step-by-step explanation:
Given that,
Original volume V1 = 1.2 L
Original pressure P1 = 5.1 kPa
New pressure P2 = 2.2 kPa
New volume V2 = ?
Since pressure and volume are given while temperature is constant, apply the formula for Boyle's law
P1V1 = P2V2
5.1 kPa x 1.2L = 2.2 kPa x V2
6.12 kPa L = 2.2 kPa x V2
V2 = 6.12 kPa L / 2.2L
V2 = 2.78 L
Thus, the new volume of the gas would be 2.78 Liters