The air pressure for a certain tire is 817.8 mmHg. What is this pressure in Kilopascals (kPa)?

Question

a) 109 kPa

b) 175.5 kPa

c) 1.002 atm

d) 1.08 atm

Answer 1

Use dimensional analysis:

817.8 mm Hg x 1 atm/760 mm Hg x 101.3 kPa/atm = 109 kPa (Answer a)