Chemistry Final Exam Review Fall Semester

Front

What is viscosity?

Back

Viscosity is a measure of a material's resistance to flowing. It describes how thick or sticky a fluid is.

Front

What is the principal energy level closest to the nucleus?

Back

The principal energy level closest to the nucleus is n=1, which has the lowest energy.

Front

Why do atoms get smaller as you move across the periodic table?

Back

Atoms tend to get smaller because the increased nuclear charge pulls electrons closer to the nucleus.

Front

What are thermal boundary layers?

Back

Thermal boundary layers are the boundaries between fluid layers where heat enters or leaves a convection cell.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the process where energy absorbed by Earth's surface is reradiated upward as infrared energy, some of which is absorbed by gases in the atmosphere and then reradiated back toward the surface.

Front

Define thermal conductivity.

Back

Thermal conductivity is the property of a material to conduct heat. It measures how quickly heat can pass through a material.

Front

What is thermal expansion?

Back

Thermal expansion is the increase in volume of a material as it is heated, due to the movement of its particles.

Front

What is the difference between conductors and insulators?

Back

Conductors are materials that allow heat or electricity to flow through them easily, while insulators resist the flow of heat or electricity.

Front

What is atomic mass?

Back

Atomic mass is the weighted average mass of an atom's isotopes, measured in atomic mass units (amu).

Front

What is the role of neutrons in an atom?

Back

Neutrons are neutral particles in the nucleus of an atom that contribute to the atomic mass and stability of the nucleus.