High School

A gas is sealed in a bottle at 25°C and 1.50 atm pressure. How must the storage conditions be changed to bring the gas to Standard Temperature and Pressure (STP)?

A. Increase the temperature by 25°C and decrease the pressure by 0.514 atm.
B. Keep the temperature the same and increase the pressure by 98.5 atm.
C. Decrease the temperature by 25°C and decrease the pressure by 0.500 atm.

Answer :

Answer: Decrease the temperature by 25°C and decrease the pressure by 0.500 atm.

Explanation:

STP stands for standard temperature and pressure conditions.

STP is defined as a temperature of [tex]0^0C[/tex] and an absolute pressure of exactly 1 atm.

Thus in order for a gas sealed in bottle at [tex]25^0C[/tex] and 1.50 atmosphere to bring to STP , the temperature must be decreased by [tex]25^0C[/tex] and pressure must be decreased by 0.5 atm to make it [tex]0^0C[/tex] and 1 atmosphere respectively.
Decrease the temperature by 25°C and decrease the pressure by 0.500 atm. hope this help

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