Question 10 of 12 The gas in a 250.0 mL piston experiences a change in pressure from 1.00 atm to 3.25 atm. What is the new volume (in mL) assuming the moles of gas and temperature are held constant?

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Chapter1: Chemical Foundations
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**Boyle's Law Application: Calculating New Volume of Gas in a Piston**

**Problem Statement:**

The gas in a 250.0 mL piston experiences a change in pressure from 1.00 atm to 3.25 atm. What is the new volume (in mL) assuming the moles of gas and temperature are held constant?

**Conceptual Explanation:**

This problem can be solved using Boyle's Law, which states that the pressure of a gas is inversely proportional to its volume when temperature and moles of gas are constant. Mathematically, it is represented as:

\[ P_1 \times V_1 = P_2 \times V_2 \]

Where:
- \( P_1 \) = initial pressure (1.00 atm)
- \( V_1 \) = initial volume (250.0 mL)
- \( P_2 \) = final pressure (3.25 atm)
- \( V_2 \) = final volume (unknown)

**Solution Steps:**

1. Substitute the known values into Boyle's Law equation:
   \[
   1.00 \, \text{atm} \times 250.0 \, \text{mL} = 3.25 \, \text{atm} \times V_2
   \]

2. Solve for \( V_2 \):
   \[
   V_2 = \frac{1.00 \, \text{atm} \times 250.0 \, \text{mL}}{3.25 \, \text{atm}}
   \]

3. Calculate \( V_2 \):
   \[
   V_2 = \frac{250.0}{3.25} \approx 76.92 \, \text{mL}
   \]

**Conclusion:**

The new volume of the gas in the piston, when the pressure is increased to 3.25 atm, is approximately 76.92 mL. This decrease in volume with an increase in pressure is consistent with the inverse relationship described by Boyle's Law.
Transcribed Image Text:**Boyle's Law Application: Calculating New Volume of Gas in a Piston** **Problem Statement:** The gas in a 250.0 mL piston experiences a change in pressure from 1.00 atm to 3.25 atm. What is the new volume (in mL) assuming the moles of gas and temperature are held constant? **Conceptual Explanation:** This problem can be solved using Boyle's Law, which states that the pressure of a gas is inversely proportional to its volume when temperature and moles of gas are constant. Mathematically, it is represented as: \[ P_1 \times V_1 = P_2 \times V_2 \] Where: - \( P_1 \) = initial pressure (1.00 atm) - \( V_1 \) = initial volume (250.0 mL) - \( P_2 \) = final pressure (3.25 atm) - \( V_2 \) = final volume (unknown) **Solution Steps:** 1. Substitute the known values into Boyle's Law equation: \[ 1.00 \, \text{atm} \times 250.0 \, \text{mL} = 3.25 \, \text{atm} \times V_2 \] 2. Solve for \( V_2 \): \[ V_2 = \frac{1.00 \, \text{atm} \times 250.0 \, \text{mL}}{3.25 \, \text{atm}} \] 3. Calculate \( V_2 \): \[ V_2 = \frac{250.0}{3.25} \approx 76.92 \, \text{mL} \] **Conclusion:** The new volume of the gas in the piston, when the pressure is increased to 3.25 atm, is approximately 76.92 mL. This decrease in volume with an increase in pressure is consistent with the inverse relationship described by Boyle's Law.
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