Isobaric and isochoric processes
Answers are for parents and teachers.
1
6 l of gas under a piston is heated isobarically from 300 K to 450 K. What is the final volume (l)?
9
2
A cylinder’s gas is at 150 kPa and 27 °C. What is the pressure in kPa after heating to 127 °C?
200
3
How must the absolute temperature change so that the volume halves in an isobaric process?
It must halve.
4
Why do balloons shrivel outdoors in winter? Explain briefly.
The air cools and the gas volume decreases as V ∝ T.
5
A closed vessel of gas is at 300 K and 100 kPa. To what temperature (K) must it be heated for the pressure to be 250 kPa?
750