Convert Pascals to Atmospheres Unit Conversion Problem

Convert Pascals to Atmospheres Unit Conversion Problem This example problem demonstrates how to convert the pressure units pascals (Pa) to atmospheres (atm). Pascal is a SI pressure unit that refers to newtons per square meter. Atmosphere originally was a unit related to the air pressure at sea level. It was later defined as 1.01325 x 105 Pa. Pa to Atm Problem The air pressure outside a cruising jet liner is approximately 2.3 x 104 Pa. What is this pressure in atmospheres?Solution:1 atm 1.01325 x 105 PaSet up the conversion so the desired unit will be cancelled out. In this case, we want Pa to be the remaining unit.pressure in atm (pressure in Pa) x (1 atm/1.01325 x 105 Pa)pressure in atm (2.3 x 104/1.01325 x 105) Papressure in atm 0.203 atmAnswer:The air pressure at cruising altitude is 0.203 atm. Check Your Work One quick check you should do to make sure your answer is reasonable is to compare the answer in atmospheres to the value in pascals. The atm value should be about 10,000 times smaller than the number in pascals.