College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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How much heat energy is transferred to or from the gas in one cycle (A to B to Cto A)?
Transcribed Image Text:**PV Diagram Analysis of O2 Gas**
Consider a 44.8 g sample of O2 gas, which follows the provided PV diagram. Provide answers to calculations using 3 significant figures.
- **Cᵥ = 20.9 J/mol K**
- **Cₚ = 29.2 J/mol K**
- **Atomic mass of O = 16u**
**Diagram Description:**
The diagram is a pressure-volume (PV) graph, where:
- **Pressure (p)** is on the vertical axis, measured in atmospheres (atm), ranging from 1.36 atm to 2.46 atm.
- **Volume (V)** is on the horizontal axis, measured in liters (L), starting from 0 to approximately 12 L.
The graph depicts three processes:
1. **A to B (Isothermal Process):**
- The curve from A to B is slightly bowed, representing an isothermal process where temperature remains constant.
- Pressure decreases as volume increases.
2. **B to C (Isochoric Process):**
- The segment from B to C is vertical, indicating an isochoric process (constant volume).
- Pressure decreases from point B to point C while the volume remains unchanged.
3. **C to A (Adiabatic Process):**
- The curve from C back to A is an adiabatic process where no heat is exchanged with the surroundings.
- Pressure increases as volume decreases following a distinct curve.
In summary, the PV diagram illustrates a thermodynamic cycle for O2 gas, showcasing different processes: isothermal, isochoric, and adiabatic.
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