Answer:
The volume would be 689 ml (0,689 L)
Explanation:
In this case, we apply the Boyle Mariotte formula, where for a certain mass of gas at constant temperature, the pressure and temperature vary inversely proportionally (P1xV1 = P2xV2). We pass the units of pressure (kPa to atm) and volume (from ml to L). 525/1000= 0,525 L
101,325Kpa----1 atm
85kPa ----------x= (85kPa x 1 atm)/101,325Kpa=0,84 atm
65kPa-----------x= (65kPa x 1 atm)/101,325Kpa=0,64 atm
P1xV1 = P2xV2 V2= (P1xV1)/P2
V2= (0,84atm x 0,525 L)/ 0,64 atm = 0,689 L --> 0,689 x 1000= 689 ml
