Terms to Know
Solving
100

Why are metals good conductors?

Because they hold their electrons loosely

100

What is the radiant power of an iron bar at 300 K?

459 W/m2

200

What is the transfer of thermal energy by a moving material?

Convection

200

It takes 195 J of thermal energy to raise the temperature of a gold sample from 100 oC to 160 oC.  What is the mass of the sample?

25.2 grams

300

What is Brownian Motion?

The random movement of particles due to collisions

300
A scientist places 50.0 g of water at 46o C.  She then adds 20.5 g of water at 90o C.  The new equilibrium temperature is 50o C.  What is the heat capacity of the calorimeter.

648.21 J/ o C

400
What is the difference between thermal energy and heat?

Thermal energy - the sum of all of the kinetic particles of a substance

Heat - the flow of thermal energy from a region of high temperature to low temperature

400
A calorimeter with a heat capacity of 45 J/o C contains 78 g of water at 39 o C.  You add a sample of tin (at 70 o C) to the calorimeter.  The final temperature of the system is 50 o C.  What is the mass of the tin sample?

895 g of tin

500
What is an adiabatic container?

A container that does not allow any heat to be lost



NOT 100% realistic

500
How much energy is required to raise 30.0 grams of aluminum from 500.0 oC to 3000 oC.

3.95 * 105 J

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