Pressure, volume and temperature of a gas
Grade 10 Science Worksheet - Challenge Me
Circle the best answer, or write your answer on the line.
A car tire's air is at 300 kPa (absolute) and 15 °C. After a hot-day drive it is 45 °C, same volume. What is the new pressure, to 0.1 kPa, Esme?
A car tire's air is at 320 kPa (absolute) and 20 °C. After a hot-day drive it is 50 °C, same volume. What is the new pressure, to 0.1 kPa, Jun?
A car tire's air is at 280 kPa (absolute) and 10 °C. After a hot-day drive it is 40 °C, same volume. What is the new pressure, to 0.1 kPa, Kira?
Milo says squeezing a sealed syringe to half its volume halves the pressure. Which reply fits, Milo?
- Disagree: half the volume doubles the pressure
- Agree: pressure and volume fall together when squeezed
- Agree, if the temperature stays the same
A sealed syringe is squeezed slowly so its temperature stays the same. Which law applies, Pia?
- Gay-Lussac's law, with volume fixed
- Charles's law, with the pressure held fixed as it is squeezed
- Boyle's law, with temperature and amount fixed
A balloon in the sun expands while the outside air keeps its pressure. Which law applies, Ren?
- Boyle's law: volume rises as pressure rises
- Charles's law: volume rises with temperature
- Gay-Lussac's law: pressure rises in a rigid box
A car tire's volume barely changes as it heats. Which law best fits its pressure rise, Tala?
- Boyle's law, with temperature fixed
- Charles's law, with pressure fixed
- Gay-Lussac's law, with volume nearly fixed
Plotting a gas's volume against kelvin temperature at fixed pressure gives what shape, Zee?
- A flat, level line
- A curve falling toward the axis
- A straight line rising from the origin
Plotting pressure against volume at fixed temperature gives what shape, Ari?
- A curve that falls as volume grows
- A straight line rising from the origin
- A flat, level line
What does P × V equal at each point on a Boyle's law curve, Bo?
- A value that rises as the pressure rises
- The same value at each point
- Zero at each point