Question

T. Olsen has a slow leak in his left rear tire.) At the Arco station, he measured the pressure in his tire as 190. kPa. Sinositor sdt wold onlooste 0.19 TO 100.Tart on 10 A. What was the absolute pressure of the air in that tire, in atm? 2 od do or to mood 9 JA B. What was the gauge pressure of the air in that tire, in torr? o pohiper

Answer 1

Solution A .

The pressure measured is the guage pressure ,

Pg = 190kpa = 190000pa

Absolute pressure ,Pa = Pg + Patm  

( Patm = atmospheric pressure = 101325 )

Therefore ,Pa = 190000 + 101325 pa

Pa = 291325 pa  

Now , as 1pa = 9.869 x 10^ -6 atm

Therefore  

Pa = absolute pressure = 2.88 atm

Solution B. Guage pressure in torr

Pg = 190000 pa

As 1pa = 0.0075 torr

Therefore , Pg = 1425.12 torr