A 30 cm diameter vertical cylinder is sealed at the top by a frictionless 16kg piston. The piston is 88cm above the bottom when the gas temperature is 309 degrees celsius. The air above the piston is at 1.00atm. What is the gas pressure inside the cylinder?

What will the height of the piston be if the temperature is lowered to 12 degrees C? I know the pressure won’t change..

### 2 Answers

Absolute or relative pressure?

The pressure is just the weight of the piston / it’s area

P = 12 x 9.8 / π(0.15)² = 1660 Pa relative

Absolute pressure = 1660 + 101kPa = 102.7 kPa

i think of that’s extra of a physics question. unique rigidity, assuming quantity is 1m³ rigidity = a million / quantity rigidity = a million / 1m³ rigidity = 1Pascal a million/3 quantity, considering that temperature is continuous Pressue = a million / quantity rigidity = a million / 0.333333333m³ rigidity = 3Pascal subsequently the rigidity is thrice the preliminary. C