A gas in a container had a measured pressure of 57 kPa. Calculate the pressure in units of atm and mmHg?

QUESTION:

A gas in a container had a measured pressure of 57 kPa. Calculate the pressure in units of atm and mmHg?

ANSWER:

First, convert to atm (57 kPa = 57 x 103 Pa).

57 x 103 Pa x 1 atm/1.01325 x 105 Pa = 0.562 = 0.56 atm

Next, convert to mmHg.

57 x 103 Pa x 760 mmHg/1.01325 x 105 Pa = 427.5 = 4.3 x 102 mmHg

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