A gas cylinder has two pressure gauges, one that shows absolute pressure and one that shows gauge pressure. At sea level, the difference between the two readings is 100 kPa. If the cylinder is carried to the top of a mountain, will the difference be smaller than, larger than, or still 100 kPa?
1) Smaller than 100 kPa
2) Larger than 100 kPa
3) Still 100 kPa