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?
Kira says a balloon at 20 °C doubles in volume when warmed to 40 °C. Which reply fits, Luz?
- Agree: doubling the Celsius reading doubles the balloon's volume
- Disagree: 293.15 K to 313.15 K is about 7% more
- Agree, if the pressure stays fixed
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, if the temperature stays the same
- Agree: pressure and volume fall together when squeezed
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
- Gay-Lussac's law: pressure rises in a rigid box
- Charles's law: volume rises with temperature
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 straight line rising from the origin
- A curve falling toward the axis
Plotting pressure against volume at fixed temperature gives what shape, Ari?
- A straight line rising from the origin
- A curve that falls as volume grows
- 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