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Physics — Second Secondary

Physics — Second Secondary

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Physics — Second Secondary 2026/2027

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Question bank: Chapter 6: Gas Laws

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  • Questions count: 3
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1.
An open flask is heated from 7 °C to 147 °C. The fraction of the original air that escapes is:
1/4
1/3
1/2
2/3
2.
Two gases are mixed (constant temperature) in a container. The pressure of the mixture is equal to:
the larger of the two partial pressures
the mean of the two
the sum of the pressures each gas would have alone in the container
their difference
3.
A helium balloon rises in the sky. Its volume:
decreases because pressure falls
increases because the surrounding pressure decreases
stays constant
becomes zero
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