Question

The pressure of the air on a mountain is 0.978 atm. What will be the pressure in the units of torr? ​

Answer 1

Given info : The pressure of the air on a mountain is 0.978 atm.

To find : what will be the pressure in the units of torr ?

solution : torr is also a unit of pressure like atm. it is defined as exactly 1/760 of a standard atmosphere. thus, one torr is exactly equal to 1/760 atm.

here pressure of the air on a mountain is 0.978 atm.

but 1 torr = 1/760 atm

⇒1 atm = 760 torr

so, 0.978 atm = 0.978 × 760 torr

= 743.28 torr

Therefore pressure of air on the mountain is 743.28 torr.

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