Question

A typical barometric pressure in Kansas City is 740 torr. What is this pressure in atmospheres, in millimeters of mercury, and in kilopascals?

Answer 1

Explanation:

Given parameters:

The barometric pressure in Kansas City  = 740torr

 Convert to mmHg, atm and kPa;

Now;

            1 atm  = 1torr

So;

          740torr = 740atm

Then;

        1 mmHg  = 1 torr

     740torr will also be 740mmHg

In kPa;

           1 atm  = 101325Pa

          740 atm  = 740 x 101325  = 74980500Pa;

  To kPa; divide by 1000

              74980.5kPa

Answer 2

The pressure of Kansas City in the atmosphere is 740 atm, in millimeter of mercury is 740 mmHg, and in kilopascals is 74980.5 kPa.

What is a barometer?

The barometer is the device used to measure pressure.

The pressure of Kansas City is 740 torrs.

• The pressure in the atmosphere is:

$\rm 1\;torr=1\;atm\\740\;torr=740\;atm$

• The pressure in the millimeters of mercury is:

$\rm 1\;torr=1\;mmHg\\740\;torr=740\;mmHg$

• The pressure in the kilopascals is:

$\rm 1\;torr=101325Pa\\740\;torr=101325\;Pa\;\times\;740\\740\;torr= 74980.5\;kPa$

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