In one city, a balloon with a volume of 6.0 L is filled with air at 101 kPa
pressure. The balloon is then taken to a second city at a much higher
altitude. At this second city, atmospheric pressure is only 91 kPa. If the
temperature is the same in both places, what will be the new volume of the
balloon?

The new volume of the balloon is 6.6 L

Explanation:

To calculate the new tempearture, we use the equation given by Boyle's law. This law states that pressure is directly proportional to the volume of the gas at constant temperature.

The equation given by this law is:

where,

are initial pressure and volume.

are final pressure and volume.

We are given:

Putting values in above equation, we get:

Thus new volume of the balloon is 6.6 L

i believe that it is a exoplanet