Question

If a gas has a gage pressure or 156 kPa, it’s absolute pressure is approximately

A. 56 kPa.
B. 100 kPa.
C. 256 kPa.
D. 300 kPa.

Answer 1

Answer: C

Gauge pressure = 156 kPa ,

What is absolute pressure =?

We know that,

absolute pressure = gauge pressure + atmospheric pressure

Pabs = Pgauge + Patm

= 156 + 101.3 (since atm.pr. = 101.3 Kpa)

= 257.3 KPa absoulte

approximately = 256 KPa absolue