Temperature
Heat Transfer
Laws of Thermodynamics
Heat
First law of Thermodynamics
100

In the United States, the most common temperature scale (and unit of measurement) is called the ________________ scale.

Fahrenheit.

100

______________ is thermal energy moving from a warmer object to a cooler object.

heat transfer

100

All matter on Earth exists in three states which are...

solids, liquids, and gases.

100

How many joules of heat are needed to raise the temperature of 10 g of aluminum from 22 C to 55 C, if the specific heat of aluminum is .90 j/gC? 

297 J

100

5000 J of heat leaves the system and 2000 J of work is done on the system. What is the change in internal energy of the system?

-3000 J

200

The temperature scale used in most of the world, and in System International is the _________________ scale.

Celsius

200

Heat is transferred in three ways. Name the three ways.

conduction, convection, and radiation.

200

The physical change from solid to liquid, or liquid to gas etc., is called a change in the ___________________.

state of matter

200

To what temperature will a 50 g piece of glass raise if it absorbs 5275 J of heat and its specific heat is .50 j/gC? The initial temperature of the glass is 20 C. 

231 C

200

A system releases 135 kJ of heat while 115 kJ of work is done on the system. Calculate the change in internal energy (in kJ).

-20 J

300

The temperature scale used in physics and chemistry that also determines the absolute zero, is the _________________ scale (0K!)

Kelvin

300

The state in which the rates of thermal energy transfer between 2 objects are equal and the objects are at the same temperature, is called thermal ______________

Equilibrium 

300

The first law of thermodynamics is a restatement of what law?

the law of conservation of energy?

300

What is the Specific heat capacity of silver if 55 g of the metal absorbs 198 J of heat and the temperature rises 15 C?

.24 J/gC

300

4500 J of heat is added to a system and 1450 J of work is done on the system. What is the change in internal energy of the system?

5950 J

400

What is the temperature in Celsius, at which water freezes.

Zero Celsius

400

__________________ is the transfer of energy by electromagnetic waves, with infrared being the most common frequency. 

Radiation 

400

The second law state that heat flows from what to what unless work is done on a system?

hot to cold

400

What is the formula for heat of Fusion? 

Q = mHf

400

In a certain process, 675 J of heat is absorbed by a system while 290 J of work is done on the system. What is the internal energy for the process?

965 J

500

At this temperature, no more energy can be removed from matter (3rd Law of Thermodynamics refers to this).

absolute zero.

500

Heat transfer through the motion of fluid due to temperature differences. 

Convection 

500

The third law states that no system can reach this.

absolute zero

500

What is the change in temperature of 150 g of chloroform if it absorbs 1000 joules of heat and the specific heat of chloroform is 0.96 J/gC

6.9 C

500

When heat flows into a closed system, its internal energy tends to _______________

Increase