Question

A typical barometric pressure in Redding, California, is about 750 mm Hg. Calculate this pressure in atm and kPa.

a) 0.987 atm, 101.3 kPa
b) 0.987 atm, 750 kPa
c) 1 atm, 75 kPa
d) 1 atm, 101.3 kPa

Answer 1

To convert barometric pressure from mm Hg to atm and kPa, divide the given value by the appropriate conversion factors.

Step-by-step explanation:

Barometric pressure is a measure of atmospheric pressure. To calculate the pressure in atm and kPa, we need to convert the given value in mm Hg. First, we convert 750 mm Hg to atm by dividing it by the conversion factor 760 mm Hg = 1 atm. This gives us 0.987 atm. To convert to kPa, we multiply the pressure in atm by the conversion factor 101.3 kPa = 1 atm. Therefore, the pressure in kPa is 0.987 x 101.3 = 99.9 kPa.