2024-2025 (H) Review for Flashcard #5, Semester 1

Front

What is a mixture?

Back

A combination of matter that can be separated by physical processes and not chemical reactions.

Front

What is the specific heat of water?

Back

4.18 J/g°C.

Front

How do you calculate heat energy (Q) transferred?

Back

Q = mass × specific heat × change in temperature.

Front

What happens to the internal energy of a system during melting?

Back

The potential energy increases as solid particles absorb heat to overcome attractive forces.

Front

When does heat transfer end between two substances?

Back

When both substances reach the same temperature.

Front

Why does an ice cube feel cold when held?

Back

Heat moves from our hands into the ice cube.

Front

What is kinetic energy?

Back

The energy of an object due to its motion.

Front

What is potential energy?

Back

The stored energy of an object due to its position or state.

Front

What is thermal equilibrium?

Back

The state when two substances reach the same temperature and no heat transfer occurs.

Front

What is the difference between heat and temperature?

Back

Heat is the energy transferred between substances, while temperature is a measure of the average kinetic energy of particles.