Chapter 15

When 10 grams of hot water cool by 1 C, the amount of heat given off is

41.9 joules

Which ot the following normally warms up fastest when heat is applied?

Iron

The temperature at the bottom of Lake Tahoe, high in the Sierra Nevada Mountains in California, at this moment is

e 4°C

Internal energy is greater

fire-engine pail of boiling-hot tea.

When we enlarge a photograph of an iron ring, the image of the hole becomes

larger

If the specific heat of water were lower than it is, ponds in the cold of winter would be

more likely to freeze.

Pour two liters of water at 40°C into one liter of water at 20°C and the final temperature of the two becomes

more than 30°C.

Ice crystals in nearly frozen liquid water make up

both of these

copper. Place equal masses of aluminum and copper wire in a flame and the Aluminum has a specific heat capacity more than twice that of one to undergo the fastest increase in temperature will be

copper

When a bimetallic bar made of copper and iron strips is heated, the bar bends toward the iron strip. The reason for this is

copper expands more than iron.