Specific Heat Capacity and Thermal Physics Flashcards

Vocabulary flashcards defining specific heat capacity, thermal phenomena, cooling mechanisms, and experimental methods based on the lecture material.

Specific Heat Capacity

The amount of heat energy absorbed or lost to change the temperature of $1\,kg$ of a substance by $1\,K$ or $1\,^\circ\text{C}$, expressed by the formula $c = \frac{Q}{m\Delta T}$.

Heat Sink

A device made from materials with low specific heat capacity (such as aluminum or copper) that heat up and cool down quickly because they cannot retain heat for long periods.

Sea Breeze

A localized wind created during the day when land heats faster than the ocean, causing warmer air over land to rise and cooler, denser air over the sea to flow inland.

Specific Heat of Dry Soil

The thermal property of dry soil, valued at $800\,J\,kg^{-1}\,K^{-1}$, which is approximately five times smaller than that of water.

Automobile Radiator System

A cooling mechanism that utilizes water's high specific heat capacity to absorb excess heat from an engine and dissipate it via a heat exchanger to prevent overheating.

Human Body Thermal Stability

The ability of the human body to maintain a temperature of approximately $37\,^\circ\text{C}$, enabled largely because the body consists of about $60\%$ water with high specific heat capacity.

Method of Mixtures

An experimental procedure using a calorimeter to measure the unknown specific heat capacity of a solid or liquid by mixing substances of different temperatures.

Principle of Calorimetry

An application of the law of conservation of energy stating that in an isolated system, the heat lost by hot bodies equals the heat gained by cold bodies.

Independent Variable (Specific Heat Experiment)

The temperature of the metal block being measured during the method of mixtures experiment.

Dependent Variable (Specific Heat Experiment)

The energy supplied to the metal block by heating during the specific heat capacity experiment.

Specific Heat of Water

The measure of heat capacity for liquid water, recorded as $4200\,J\,kg^{-1}\,K^{-1}$ in text descriptions and $4190\,J\,kg^{-1}\,K^{-1}$ in standard physical property tables.

Specific Heat of Aluminum

The heat capacity value for aluminum, listed as $900\,J\,kg^{-1}\,K^{-1}$ in standard problems and $910\,J\,kg^{-1}\,K^{-1}$ in reference tables.