A tank contains oxygen ([tex]$O_2$[/tex]) at a pressure of 2.50 atm.

What is the pressure in the tank in terms of pounds per square inch (lb/in²)?

Express the pressure in pounds per square inch to three significant figures.



Answer :

To convert the pressure in the tank from atmospheres (atm) to pounds per square inch (lb/in²), we need to use the conversion factor between these units.

1 atmosphere (atm) is equivalent to 14.696 pounds per square inch (lb/in²).

Here are the steps to perform the conversion:

1. Identify the initial pressure in atmospheres:
The given pressure in the tank is [tex]\( 2.50 \)[/tex] atm.

2. Use the conversion factor to change atmospheres to pounds per square inch:
The conversion factor is [tex]\( 1 \)[/tex] atm = [tex]\( 14.696 \)[/tex] lb/in².

To convert the given pressure to lb/in²:
[tex]\[ \text{Pressure in lb/in²} = \text{Pressure in atm} \times \text{Conversion factor} \][/tex]
Substituting the known values:
[tex]\[ \text{Pressure in lb/in²} = 2.50 \, \text{atm} \times 14.696 \, \frac{\text{lb}}{\text{in}^2} \][/tex]

3. Calculate the result:
[tex]\[ \text{Pressure in lb/in²} = 2.50 \times 14.696 = 36.74 \, \text{lb/in}^2 \][/tex]

Hence, the pressure in the tank is [tex]\( 36.74 \)[/tex] lb/in², rounded to three significant figures.