A sealed piston is used to expand a gas. No gas escapes during the process. What happens…
Physics · IGCSE · Cambridge (CIE) — Thermal physics
A sealed piston is used to expand a gas. No gas escapes during the process.
What happens to both the density of the gas and to its pressure when it is expanded in this way?
Density | Pressure | |
A | stays the same | stays the same |
B | increases | decreases |
C | decreases | stays the same |
D | decreases | decreases |
A
B
C
D
Answer
(D) D
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