Thermodynamics Chapter 1 Study Notes

Thermodynamics - Chapter 1 Study Notes

• Enthalpy of an ideal gas is solely dependent on temperature.
• The Carnot cycle is the most efficient thermodynamic cycle.
• The first law of thermodynamics states that energy cannot be created or destroyed, only transformed.
• Isothermal compression of an ideal gas results in zero enthalpy change.
• A process with no heat transfer is known as an adiabatic process.
• Compressing an ideal gas adiabatically causes its temperature to increase.
• The SI unit for pressure is the Pascal (Pa).
• The relationship Cp = Cv + R applies to ideal gases.
• In a flow process, neglecting kinetic and potential energies, the integral of Vdp represents shaft work.
• Enthalpy is the mechanical energy of pressure converted into heat energy.
• A Joule-Thomson coefficient of zero indicates an isothermal process.
• The entropy of a fluid passing through a nozzle remains the same.
• Thermal power plants convert fossil fuels into shaft work.
• Dissolved oxygen and carbon dioxide (O2 and CO2) in water make it corrosive, reacting with metal to form iron oxide.
• The critical temperature of mercury is 1460 °C.
• Magnetohydrodynamic (MHD) is the method of converting heat directly to electricity using magnetism.
• Zinc telluride is not a material used for thermoelectric elements.
• Faraday's Law states that moving a conductor and a magnetic field relative to each other induces an electric voltage in the conductor.
• A thermionic generator converts heat directly into electrical energy using thermionic emissions.
• Thermodynamics is the theory of converting heat into mechanical work.
• Mean effective pressure is the average pressure on a surface during a changing pressure condition.
• The Stirling cycle consists of two isothermal and two constant volume processes.
• A control volume refers to a fixed region in space.