Temperature and Heat

Student Learning Objectives
Lessons / Lecture Notes
Important Equations
Example Problems
Pencasts
Applets and Animations


Student Learning Objectives



Lessons / Lecture Notes

PY105 Notes from Boston University (algebra-based):

HyperPhysics (calculus-based)

General Physics I notes from ETSU (calculus-based)



Important Equations

word
pdf



Example Problems

Problem 1
How much heat is required to change 1.0 kg of ice, originally at –20.0°C, into steam at 110.0°C? Assume 1.0 atm of pressure. (Solutions)

Useful constants:

cwater = 4186 J/(kg Co)
cice = 2.00 × 103 J/(kg Co)
csteam = 2.00 × 103 J/(kg Co)
Lf = 33.5 × 104 J/kg
Lv = 22.6 × 105 J/kg

Problem 2
What mass of water at 95.0 oC must be mixed with 150.0 g of ice at –5.00 oC, in a thermally insulated container, to produce liquid water at 50.0 oC? (Solutions)

Useful constants:

cwater = 4186 J/(kg Co)
cice = 2.00 × 103 J/(kg Co)
Lf = 33.5 × 104 J/kg
Lv = 22.6 × 105 J/kg

Problem 3
One end of an iron poker is placed in a fire where the temperature is 502 oC, and the other end is kept at a temperature of 26 oC. The poker is 1.2 m long and has a radius of 5.0 × 10-3 m. Ignoring the heat lost along the length of the poker, find the amount of heat conducted from one end of the poker to the other in 5.0 s. (Solutions)


Pencasts


Temperature and Heat
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Applets and Animations
Gas Properties

Pump gas molecules to a box and see what happens as you change the volume, add or remove heat, change gravity, and more. Measure the temperature and pressure, and discover how the properties of the gas vary in relation to each other.

States of Matter

Watch different types of molecules form a solid, liquid, or gas. Add or remove heat and watch the phase change. Change the temperature or volume of a container and see a pressure-temperature diagram respond in real time. Relate the interaction potential to the forces between molecules.

Reversible Reactions

Watch a reaction proceed over time. How does total energy affect a reaction rate? Vary temperature, barrier height, and potential energies. Record concentrations and time in order to extract rate coefficients. Do temperature dependent studies to extract Arrhenius parameters. This simulation is best used with teacher guidance because it presents an analogy of chemical reactions.