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If the absolute pressure of a gas is 550.280 kPa, its gauge pressure is:

A. 101.325 kPa
B. 651.605 kPa
C. 448.955 kPa
D. 277.280 kPa

Answer :

Answer:

Option C is the correct answer.

Explanation:

Absolute pressure is sum of gauge pressure and atmospheric pressure.

That is

[tex]P_{abs}=P_{gauge}+P_{atm}[/tex]

We have

[tex]P_{abs}=550.280 kPa\\\\P_{atm}=1atm=101325Pa=101.325kPa[/tex]

Substituting

[tex]P_{abs}=P_{gauge}+P_{atm}\\\\550.280=P_{gauge}+101.325\\\\P_{gauge}=448.955kPa[/tex]

Option C is the correct answer.

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