General Chemistry

The gas law formula p1 t1 = p2 t2 is a simplified version of the combined gas law that is used when the volume and the amount of gas are constant. This formula is often referred to as Gay-Lussac's law. It states that the pressure of a gas is directly proportional to its absolute temperature, provided the volume remains constant. To interpret this formula, let's break it down: - p1 and p2 represent the initial and final pressures of the gas, respectively. - t1 and t2 represent the initial and final temperatures of the gas, respectively. The formula essentially states that the ratio of the initial pressure and temperature (p1/t1) is equal to the ratio of the final pressure and temperature (p2/t2). Here's a step-by-step guide on how to use this formula: 1. Identify the initial pressure (p1) and temperature (t1) of the gas. The temperature must be in Kelvin for the formula to work correctly. 2. Identify the final temperature (t2) of the gas. Again, this must be in Kelvin. 3. Substitute these values into the formula to find the final pressure (p2) of the gas. The formula rearranges to p2 = (p1 * t2) / t1. 4. Solve the equation to find the final pressure. This formula is particularly useful in physics and chemistry when studying the behavior of gases under varying conditions of pressure and temperature. It allows scientists to predict how a change in temperature will affect the pressure of a gas, and vice versa, assuming the volume and amount of gas remain constant. Remember, the key to correctly using this formula is ensuring that the temperature is always in Kelvin, as the formula relies on absolute temperature. This is because the Kelvin scale starts at absolute zero, which is the lowest possible temperature where all thermal motion ceases.

Question

How do you interpret the gas law formula p1 t1 = p2 t2?

Solution

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