Thermodynamics and Electricity: Concepts and Calculations, Quizzes of Physics

Download Thermodynamics and Electricity: Concepts and Calculations and more Quizzes Physics in PDF only on Docsity! TERM 1 Efficiency DEFINITION 1 Heat Engine: Work done by the gas (Ws)/Heat but into the system (Qh) Remember that Ws = Qh-Qc Carnot Engine: 1- (Tc/Th) or (Th-Tc)/Th Efficiency of the Carnot Engine must always be greater than a heat engine or the heat engine situation does not exist TERM 2 Changing Phases DEFINITION 2 Q= mCdT ^^for changing in the same phase (from gas to gas..etc) Q= mL ^^for changing phases (from liquid to gas) TERM 3 Work DEFINITION 3 Work done on the gas is positive if it is going counter clockwise (compression) and negative if going clockwise (expansion) TERM 4 Work done on vs. Work done by DEFINITION 4 Work done on a gas (W) is the equal in magnitude, opposite in direction of the work done by a gas (Ws) TERM 5 General Work DEFINITION 5 Work is the area of the shape or under the curve of a shape. Gets complicated when isotherms and adiabats are included. You need equations to solve those two. TERM 6 Degrees of Freedom DEFINITION 6 the amount of ways one molecule of gas can move Monatomic: 3/2 Diatomic: 5/2 TERM 7 Ideal Gas Laws DEFINITION 7 pV = nRT pV = NKbT TERM 8 Number Density DEFINITION 8 Number of molecules/Volume TERM 9 Sealed Container DEFINITION 9 Get everything in terms of the constant and set equal to each other TERM 10 Root Mean Square Veolicty DEFINITION 10 Vrms = Sqrt((3Rt)/m) Basically a sum of all of the averages of veolicty SQRT(v^2)avg)