You can always use our Boyle's law calculator to check if your evaluations are correct!īoyle's law describes all processes for which temperature remains constant. It is then decompressed isothermally to the pressure of 0.2 atm. The next Boyle's law example concerns a gas under 2.5 atm pressure while occupying 6 liters of space.
This is a consequence of the fact that the product of the pressure and the volume must be constant during this process. P 2 = p 1 × V 1 / V 2 = 100 kPa × 2 m 3 / 1 m 3 = 200 kPa.Īfter halving the volume, the internal pressure is doubled. The question is: "How does the pressure of the gas change?". We decide to compress the box down to 1 m 3, but we don't change the overall temperature. The initial pressure is 100 kPa (or 10 5 Pa if we use scientific notation), and the volume of the container equals 2 m 3. Imagine that we have an elastic container that holds a gas. We can use Boyle's law in several ways, so let's take a look at some examples: The transition can progress in both ways, so both compression and gas expansion satisfy Boyle's law. For this process, the curve is a hyperbola. The most commonly used type is where the pressure is a volume function. We can visualize the whole process on Boyle's law graph. Just insert any three parameters, and the fourth one will be calculated immediately! This Boyle's law calculator works in any direction you like. P 2 = p 1 × V 1 / V 2 or p 2 / p 1 = V 1 / V 2.Īs we can see, the ratio of the final and initial pressure is the inverse of the ratio for volumes. Then, the equation of Boyle's law states that:
Let's say we change the volume of a gas under isothermal conditions, and we want to find the resulting pressure.
We can write Boyle's law formula in various ways depending on which parameter we want to estimate. Similarly, p 2 and V 2 are the final values of these gas parameters. Where p 1 and V 1 are initial pressure and volume, respectively. We can write the Boyle's law equation in the following way:
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