Chemistry vocab

The change in enthalpy when one mole of a substance in the standard state, is formed from its pure elements under the same conditions.

The standard unit of work or energy in the International System of Units, equal to the work done by a force of one newton.

The principle that energy can neither be created nor be destroyed.

The heat required to raise the temperature of the unit mass of a given substance by a given amount.

An apparatus for measuring the amount of heat involved in a chemical reaction or other process.

A chemical reaction accompanied by the absorption heat

The amount of heat necessary to melt 1.00 mole if a substance at its melting point

Is a balanced stoichiometric chemical equation that includes the enthalpy change

The heat change in a chemical reaction is the same regardless of the number of stages in which the reaction is effected

Is a chemical reaction that releases energy by light or heat

Is the time-revolution of a system in which it releases free energy and moves to a lower, more thermodynamically stable energy state.

The branch of physical science that deals with the relations between heat and other forms of energy and by extension of relationships between all forms of energy

The quality of being hot, high temperature.

Power derived form the utilization of physical or chemical resources, especially to provide light and heat or to work machines.

A form of potential energy that can be absorbed or released during a chemical reaction or phase transition.

The energy needed to raise the temperature of 1 gram of water through 1 degrees celcius

Enthalpy change when 1 mole of a compound is completely burnt in oxygen gas at 298k and 1 bar pressure

Enthalpy change needed in order for one mole of a given substance to undergo a liquid.

Is the study of the energy and heat associated with chemical reactions and/ or physical transformations.

The whole of all matter, energy planets, galaxies and space.

The part of the universe being studied.

The rest of the universe that interacts with the system

Enthalpy change that occurs in a system when one mole of matter is transformed by a chemical reaction under standard conditions.

A thermodynamic quantity equivalent to the capacity of a system to do work.

A thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work.

A thermodynamic quantity equivalent to the total heat content of a system.