List the three factors that determine the volume of a gas: a. _____ b. ______ c.

Question

List the three factors that determine the volume of a gas: a. _____ b. ______ c. ______ When dealing with gases, it is common to refer to volumes at standard temperature and pressure (STP). What are the values of standard temperature and pressure for ? a, State Boyle's law: b. State Charles's law: If the pressure exerted on a 100-L weather balloon changes from 1.0 atm to 2.0 atm, what would be the volume of the balloon at the higher pressure? Assume the temperature does change and the balloon has no leaks. What would happen to the volume of the 100-L weather balloon if its temperature increases from 25 degree C to 125 degree C while the external pressure remains constant? Again, there are no leaks in the balloon.

Explanation / Answer

Hi

1. The ideal gas law is PV= nRT,

so the three factors that determine the volume of gas are

P= Pressure, n= moles of gas and T= temperature

2. STP Temperature= 273 K and STP Pressure= 1 atm

3. Boyle's Law: PV=nRT, when temperature and number of moles of gas are constant, pressure of gas varies inversely proportional to its volume.

PV= constant, so P1V1=P2V2

Charle's Law: When pressure of a gas is kept constant, its volume varies directly proportional to temperature.

V/T= constant. so V1/T1= V2/T2

Thank you

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