Chemistry · Unit 2 · Intermolecular forces and gases · Intermolecular forces
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A fixed mass of helium gas at standard temperature and pressure (STP) occupies a volume of $22.7 \text{ dm}^3$. If the pressure is increased to $200 \text{ kPa}$ while the temperature remains constant, what volume will the gas occupy?
A sealed syringe contains nitrogen gas at a pressure of $98.0 \text{ kPa}$ and a volume of $45.0 \text{ mL}$. The plunger is slowly pushed until the volume is reduced to $15.0 \text{ mL}$, while the temperature remains constant. (a) State Boyle's law. (b) Calculate the new pressure of the nitrogen gas.
A sample of nitrogen gas at standard temperature and pressure (STP) occupies a volume of 2.27 dm³. The gas is then compressed to a volume of 1.13 dm³ while temperature remains constant. Which statement correctly describes the pressure change?