What type of energy is being used by the roller coaster at each point? 8 9) 10) 11) 8) 9) 10) 11) A) Potential Energy A) Gaining
Potential Energy A) Potential Energy A) Gaining Potential Energy B) Kinetic Energy B) Gaining Kinetic Energy B) Kinetic Energy B) Gaining Kinetic Energy
1 answer:
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Answer:
The temperature must be changed to 4 times of the initial temperature so as to keep the pressure and the volume the same.
Explanation:
Pressure in the container is P and volume is V.
Temperature of the helium gas molecules =
Molecules helium gas = x
Moles of helium has =
PV = nRT (Ideal gas equation)
...[1]
After removal of helium gas only a fourth of the gas molecules remains and pressure in the container and volume should remain same.
Molecules of helium left after removal =
Moles of helium has left after removal =
...[2]
The temperature must be changed to 4 times of the initial temperature so as to keep the pressure and the volume the same.