For each process, draw the PV diagram; write the work equation, write the heat equation, and any other relevant equations ISOBARIC W L Q= Volume ISOCHORIC W L Q Volume ISOTHERMAL W Q= Volume ADIABATIC W Volume First Law of Thermodynamics: 1
Added by Becky H.
Close
Step 1
Isobaric Process: PV Diagram: Horizontal line (constant pressure) Work Equation: $W = P(V_f - V_i)$ Heat Equation: $Q = nC_p(T_f - T_i)$ Volume: Changes Ischoric Process: PV Diagram: Vertical line (constant volume) Work Equation: $W = 0$ (no work is done) Heat Show more…
Show all steps
Your feedback will help us improve your experience
Mahendra Kumar and 55 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Work and Heat in PV Diagram Example 13: First law in isobaric and isovolumetric processes. An ideal gas is slowly compressed at a constant pressure of 2.0 atm from 10.0 L to 2.0 L. (In this process, some heat flows out of the gas and the temperature drops.) Heat is then added to the gas, holding the volume constant, and the pressure and temperature are allowed to rise (line DA) until the temperature reaches its original value (TA = TB). Calculate (a) the total work done by the gas in the process BDA, and (b) the total heat flow into the gas.
Maitreya E.
A gas expands from an initial state where $p_{1}=500 \mathrm{kPa}$ and $V_{1}=0.1 \mathrm{~m}^{3}$ to a final state where $p_{2}=100 \mathrm{kPa}$. The relationship between pressure and volume during the process is $p V=$ constant. Sketch the process on a $p-V$ diagram and determine the work, in $\mathrm{kJ}$.
Energy and the First Law of Thermodynamics
Problems: Developing Engineering Skills
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD