PSII: Chapter 6 Quiz

Suppose you put a closed, sealed can of air on a hot stove burner. The contained air will undergo an increase in

All of these

Temperature is related mostly to the ________.

Average molecular kinetic energy in a substance

When ice floats in water, a small part of it extends above the surface. Interestingly enough, the volume of ice that extends above the surface is equal to the volume of the

Vast number of open spaces in the hexagonal ice crystals

Heat energy is measured in units of

Both of these: - Calories - Joules

The fact that a thermometer "takes its own temperature" illustrates

Thermal equilibrium

A volume of air has a temperature of 0°C. An equal volume of air that is twice as hot has a temperature of

273°C

Consider a piece of metal that is at 10°C. If it is heated until it has twice the thermal energy, its temperature will be

293°C

When 100 J of heat is added to a system that performs 60 J of work, the thermal energy change of the system is

40J

Before ice can form on a lake, all the water in the lake must be cooled to

4°C

Which temperature scale labels the freezing point of water at 0 degrees?

Celsius

Blow on your hand with your open mouth and you feel the warmth of your breath. Pucker your lips so your breath expands as you blow and your breath is

Cooler

Aluminum has a specific heat capacity more than twice that of copper. Place equal masses of aluminum and copper wire in a flame and the 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

If glass expanded more than mercury, then the column of mercury in a mercury thermometer would rise when the temperature

Decreases

When work is done by a system and no heat added to it, the temperature of the system

Decreases

When water at 4°C is heated slightly it expands. When water at 4°C is cooled slightly, it

Expands

Which of the following expands most when the temperature is increased? Equal volumes of

Helium

Some molecules are able to absorb large amounts of energy in the form of internal vibrations and rotations. Materials composed of such molecules have

High specific heat capacities

The moderate temperatures of islands throughout the world has much to do with water's

High specific heat capacity

Compared to a giant iceberg, a hot cup of coffee has

Higher temperature but less thermal energy

As a system becomes more disordered, entropy

Increases

Which of the following normally warms up faster when heat is applied?

Iron

Ice has a lower density than water because ice

Is made of open-structured, hexagonal crystals

Double the absolute temperature of helium gas, and the molecules of helium, on average, speed up by

Less than twice

Two identical blocks of iron, one at 10°C and the other at 20°C, are put in contact. Suppose the cooler block cools to 5°C and the warmer block warms to 25°C. This would violate the

Second law of thermodynamics