22. The First Law of Thermodynamics

PV Diagrams & Work

Lesson 6 - Work Heat And PV Diagrams (Physics Tutor)

16 - Thermodynamics - PV diagram

A cylinder contains 0.0100 mol of helium at T = 27.0°C. (a) How much heat is needed to raise the temperature to 67.0°C while keeping the volume constant? Draw a pV-diagram for this process. (b) If instead the pressure of the helium is kept constant, how much heat is needed to raise the temperature from 27.0°C to 67.0°C? Draw a pV-diagram for this process. (c) What accounts for the difference between your answers to parts (a) and (b)? In which case is more heat required? What becomes of the additional heat? (d) If the gas is ideal, what is the change in its internal energy in part (a)? In part (b)? How do the two answers compare? Why?

Work and PV Diagrams

PV Diagrams

PV diagrams and work

Finding Value of V on Axis

PV Graph and First Law of Thermodynamics

Thermodynamics and P-V Diagrams

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