PHYS 104 1st Edition Lecture 15Outline of Last Lecture I. Potential Energy CurvesII. Bound StatesIII. Potential energy of Chemical BondsOutline of Current Lecture IV. Thermal energy and temperatureV. First law of thermodynamicsVI. Heat capacityVII. Ideal gasesCurrent Lecture- Thermal energyo Eth = Umicro + Kmicroo Thermal energy is the sum of potential energy and the kinetic energy of all atoms/molecules in the systemo Temperature is the measure of the average translational kinetic energy pre atom or molecules o Kelvin Always positive Absolute temperature scale 0 to 373- First Law of Thermodynamicso Energy can be transferred between the system and environment through a thermal interactiono Energy transferred is heato W + Q = Delta Eo Heat and work are both transferredo Adding energy or removing it changes thermal energy- Specific heato Amount of energy required to raise the temperatureo Units are J/kgKo c=Q/(M * deltaT)- Ideal Gaseso pV= nRTThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.o Pressure, volume, temperature, number of moleso Isobaric process – constant pressureo Isochoric process – constant volumeo Isothermal process – constant temperature- Zeroth Law of Thermodynamicso Heat is transferred between two objectso Two systems placed will transfer thermal energy from hot to cold until equilibriumo Heat flows from hotter to cooler object
View Full Document