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18 Nov 2019

A cylinder with a movable piston contains 2.00 g of helium, He, at room temperature. More helium was added to the cylinder and the volume was adjusted so that the gas pressure remained the same. How many grams of helium were added to the cylinder if the volume was changed from 2.00 L to 3.70 L

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17 Aug 2019

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Related questions

Part A- A certain amount of chlorine gas was placed inside a cylinder witha movable piston at one end. The initial volume was 3.00

L and the initial pressure of chlorine was 1.30atm. The piston was pushed down to change the volume to 1.00L.Calculate the final pressure of the gas if the temperature andnumber of moles of chlorine remain constant.(figure 1)

figure 1- V=3.00L and decreased to V=1.00L


Part B- In an air-conditioned room at 19.0


?Ca spherical balloon had the diameter of 50.0 cm.When taken outside on a hot summer day, the balloon expanded to51.0cmin diameter. What was the temperature outside? Assume that theballoon is a perfect sphere and that the pressure and number ofmoles of air molecules remains the same.



Part C- A cylinder with a movable piston contains 2.00g of helium, He,at room temperature. More helium was added to the cylinder and thevolume was adjusted so that the gas pressure remained the same. Howmany grams of helium were added to the cylinder if the volume waschanged from 2.00 L to 4.10L

(The temperature was held constant.)?

± Changes in Volume

The ideal gas law (PV=nRT) describes the relationship among pressure P, volume V, temperature T, and molar amount n. When some of these variables are constant, the ideal gas law can be rearranged in different ways to take the following forms where k is a constant:
Name Expression Constant
Boyle's law PV=nRT=k n and T
Charles's law VT=nRP=k n and P
Avogadro's law Vn=RTP=k T and P

Part A

A certain amount of chlorine gas was placed inside a cylinder with a movable piston at one end. The initial volume was 3.00 L and the initial pressure of chlorine was 1.15 atm . The piston was pushed down to change the volume to 1.00 L. Calculate the final pressure of the gas if the temperature and number of moles of chlorine remain constant.. (Figure 1)

Express your answer with the appropriate units.
Pfinal =

SubmitHintsMy AnswersGive UpReview Part

Part B

In an air-conditioned room at 19.0 ∘C, a spherical balloon had the diameter of 50.0 cm. When taken outside on a hot summer day, the balloon expanded to 51.0 cm in diameter. What was the temperature outside in degrees Celsius? Assume that the balloon is a perfect sphere and that the pressure and number of moles of air molecules remains the same.

Express your answer with the appropriate units.
outside temperature =

SubmitHintsMy AnswersGive UpReview Part

Part C

A cylinder with a movable piston contains 2.00 g of helium, He, at room temperature. More helium was added to the cylinder and the volume was adjusted so that the gas pressure remained the same. How many grams of helium were added to the cylinder if the volume was changed from 2.00 L to 4.10 L ? (The temperature was held constant.)

Express your answer with the appropriate units.
mass of helium added =

SubmitHintsMy AnswersGive UpReview Part

The ideal gas law (PV=nRT) describes the relationship amongpressure P, volume V, temperature T, and molar amount n. When someof these variables are constant, the ideal gas law can berearranged in different ways to take the following forms where k isa constant: Name Expression Constant Boyle's law PV=nRT=k n and TCharles's law VT=nRP=k n and P Avogadro's law Vn=RTP=k T and P

Part A

A certain amount of chlorine gas was placed inside a cylinderwith a movable piston at one end. The initial volume was 3.00 L andthe initial pressure of chlorine was 1.80atm . The piston waspushed down to change the volume to 1.00 L. Calculate the finalpressure of the gas if the temperature and number of moles ofchlorine remain constant.. (Figure 1) Express your answer with theappropriate units. Pfinal =

Part B

In an air-conditioned room at 19.0 ❝C, a spherical balloon hadthe diameter of 50.0 cm. When taken outside on a hot summer day,the balloon expanded to 51.0cm in diameter. What was thetemperature outside? Assume that the balloon is a perfect sphereand that the pressure and number of moles of air molecules remainsthe same. Express your answer with the appropriate units. outsidetemperature =

Part C

A cylinder with a movable piston contains 2.00 g of helium, He,at room temperature. More helium was added to the cylinder and thevolume was adjusted so that the gas pressure remained the same. Howmany grams of helium were added to the cylinder if the volume waschanged from 2.00 L to 4.50L ? (The temperature was held constant.)Express your answer with the appropriate units. mass of heliumadded =

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