thermochemistry

Front

What is heat measured in?

Back

Heat is measured in joules.

Front

Which law of thermodynamics states that absolute zero cannot be reached?

Back

The 3rd law of thermodynamics states that absolute zero cannot be reached.

Front

What is the transfer of thermal energy between objects of different temperatures called?

Back

The transfer of thermal energy between objects of different temperatures is called heat.

Front

What is a chemical reaction that absorbs heat from the surroundings called?

Back

A chemical reaction that absorbs heat from the surroundings is called endothermic and has a positive ΔH at constant pressure.

Front

What is a device for measuring temperature?

Back

A thermometer is a device for measuring temperature.

Front

What is the definition of thermochemistry?

Back

Thermochemistry is the study of the heat energy associated with chemical reactions and changes of state.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat to its surroundings, resulting in a negative ΔH.

Front

What is the difference between temperature and heat?

Back

Temperature is a measure of the average kinetic energy of particles in a substance, while heat is the energy transferred between substances due to a temperature difference.

Front

What is specific heat capacity?

Back

Specific heat capacity is the amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius.

Front

What is the formula for calculating heat energy?

Back

The formula for calculating heat energy is Q = mcΔT, where Q is heat energy, m is mass, c is specific heat capacity, and ΔT is the change in temperature.