**Pressure Conversion Problem**

The pressure reading from a barometer is 742 mm Hg. Express this reading in kilopascals, kPa.

**Solution**

This conversion may be performed using two conversion factors:

760 mm Hg = 1.013 x 10^{5} Pa

1 kPa = 10^{3}Pa

742 mm Hg x 1.013 x 10^{5} Pa / 760 mm Hg x 1 kPa / 10^{3} Pa = 98.9 kPa

**Answer**

98.9 kPa

Always ask yourself whether your final answer seems reasonable. Atmospheric pressure is usually close to 100 kPa, so an answer of 98.9 kPa is reasonable.