Can the temperature of a system remain constant even though heat flows into or out it? If so, give examples.

An "emergency blanket" is a thin shiny (metal coated) plastic foil. Explain how it can help to keep an immobile person warm.

A premature baby in an incubator can be dangerously cooled even when the air temperature in the incubator is warm. Explain.

Explain why air temperature readings are always taken with the thermometer in the shade.

The floor of a house on a foundation under which the air can flow is often cooler than a floor that rests directly on the ground (such as a concrete slab foundation). Explain.

The floor of a house on a foundation under which the air can flow is often cooler than a floor that rests directly on the ground (such as a concrete slab foundation). Explain.

Is it possible to determine whether a change in internal energy is caused by heat transferred, by work performed, or by a combination of the two?

Microprocessor chips have a "heat sink" glued on top that looks like a series of fins. Why is it shaped like that?

An aluminum baseball bat has a length of 0.86 m at a temperature of

$$17 ^\circ C.$$

When the temperature of the bat is raised, the bat lengthens by 0.000 16 m. Determine the final temperature of the bat.

Explorers on failed Arctic expeditions have survived by covering themselves with snow. Why would they do that?

The atoms in a container of helium (He) have the same translational rms speed as the atoms in a container of argon (Ar). Treating each gas as an ideal gas, decide which, if either, has the greater temperature.

A nuclear power plant operates at $65 \%$ of its maximum theoretical (Carnot) efficiency between temperatures of $660^{\circ} \mathrm{C}$ and $330^{\circ} \mathrm{C}$. If the plant produces electric energy at the rate of $1.4 \mathrm{GW}$, how much exhaust heat is discharged per hour?

An emergency blanket is a thin shiny (metal-coated) plastic foil. Explain how it can help to keep an immobile person warm.

The basin of the tidal power plant at the mouth of the Rance River in France covers an area of $23$ km$^2$. The average difference in water height between high and low tide is $8.5$ m. Estimate how much work the falling water can do on the turbines per day, assuming there are two high and two low tides per day. Assume the basin is flat, and neglect any KE of water before and after its fall. See earlier Fig.