Question

A vacuum gage connected to a chamber reads 35 kPa at a location where the atmospheric pressure is 92 kPa. Determine the absolute pressure in the chamber.

Answer 1

57 kPa.

Step-by-step explanation:

Absolute pressure is zero-referenced against a perfect vacuum, so it is equal atmospheric pressure to vacuum gauge pressure.

Mathematically,

Pab = Patm - Pvac

Given:

Pvac = 35 kPa

Patm = 92 kPa

Pab = 92 - 35

= 57 kPa.

Answer 2

the absolute pressure in the chamber is 57 kPa

Step-by-step explanation:

given information:

vacuum's pressure, P₁ = 35 kPa

atmospheric pressure, P₀ = 92 kPa

to find the absolute pressure in he chamber, we can use the following equation:

`P_(abs) =P_(atm) - P_(v)`

where

`P_(abs)` = absolute pressure

`P_(atm)`= atmospheric pressure

`P_(v)`= vacuum pressure

so,

`P_(abs) =P_(atm) - P_(v)`

= 92 kPa - 35 kPa

= 57 kPa