Question

The air pressure reading from a barometer is 742mm Hg. Express this reading in kilopascals, KPa. (use 760mm Hg=1.013 X 10^5 Pa)

Answer 1

Below

Explanation:

742 mm / ( 760 mm / 1.013 x 10^5 Pa) = 9.89 x 10^4 Pa