ACR 101 Unit 1

Which of the following represents a different temperature than the other three?

• 475°K
• 15°C
• 59°F
• 519°R

Of the following choices, the warmest temperature is ____.

• 303°K
• 20°C
• 501°R
• 77°F

Temperature can be thought of as ____.

• a description of the level of heat
• the amount of heat in a material
• the density of the material
• the weight of the total mass of the material

The temperature on the Fahrenheit scale where all molecular biology activity stops is ____.

• -460°F
• -450°F
• -0°F
• -462.95°F

At standard conditions on the Celsius scale, water will boil at ____.

• 100°C
• 32°C
• 212°C
• 0°C

The temperature on the Celsius scale where all molecular activity stops is ____.

• -273°C
• -460°C
• -293°C
• -459.6°C

As the temperature of a material increases, the molecules in the material ____.

• travel faster
• stop moving
• slow down
• travel in more of a parallel direction

The Celsius equivalent of 80°F is ____.

• 26.7°C
• 25.5°C
• 26.3°C
• 27.5°C

How many Btus are required to change one pound of ice at 20°F to steam at 220°F?

• 1,304 Btu
• 2,608 Btu
• 3,912 Btu
• 6,520 Btu

How many Btus must be removed from one pound of water at 200°F for it to end up as ice at 30°F?

• 313 Btu
• 144 Btu
• 828 Btu
• 526 Btu