Homework Answers
Absolute pressure is the sum of atmospheric pressure and gauge pressure.
Now,
Atmospheric pressure = 770 mm of Hg
= 0.770 *13600*9.81
= 102.7303 kPa
Gauge pressure = 1.2 N/mm2..(Given)
= 1.2 MPa
= 1200 kPa
Where,
13600 kg/cu. m is the density of mercury .
Now,
Absolute pressure = 1200+102.7303
= 1302.7303 kPa
= 1302730.3 N/m2
= 13.0273 bar.
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