Heat vs. Enthalpy

[Anthony Stone 1K]

What is the difference between heat and enthalpy if any?

[Ashley M 2E]

Heat is the transfer of energy due to a temperature difference. Enthalpy is the change in amount of heat in a system at constant pressure. You can use heat and enthalpy interchangeably if there is no work being done to the system.

[Cadence Chang]

Hi! Enthalpy is the total amount of heat in a system while heat is the energy that moves in and out of systems. The change in enthalpy is the measure of the amount of heat moving in and out of the system.

[Jeffrey Yang 3I]

In layman's terms, change in enthalpy is the heat gained/lost by the system. This statement relates heat to enthalpy, but one way I like to think about these two terms is that enthalpy looks at changes at a broader level. Enthalpy is change in a system, whereas the movement of heat is what causes these changes.

[Neha Mukund]

Enthalpy is the measure of the total heat moving in and out of the system whereas heat is energy that transfers to or from a thermodynamic system.

[Gianna Greco 1G]

Hi! Heat is the energy that is transferred during a chemical reaction, while enthalpy is the net change in energy when a reaction occurs.

[Zoe Dhalla 3I]

Heat is a transfer of energy due to a temperature difference. Enthalpy is the change in amount of heat in a system at constant pressure. You can only use heat and enthalpy interchangeably if there is no work being done to the system.

[Ashley Wilson 2L]

Enthalpy is the study of heat released and absorbed in chemical reactions or physical changes. Therefore, enthalpy relates to heat because a positive enthalpy represents the input of energy while a negative enthalpy represents the release of energy.

[Wilson Zheng 1L]

Heat is usually seen as the transfer of energy whereas enthalpy denotes the transfer of thermal energy between systems!

[Amaris Cagungun 1F]

Heat is the energy in transit while enthalpy is the net heat content in a system

[Helen Ringley 2E]

Heat is energy that is transferred when a chemical reaction happens, but enthalpy is the final amount of heat - initial amount of heat. In other words, it is the net change in the heat.

[Shreya Arcot 3K]

Heat is energy that is transferred during a chemical reaction, whereas enthalpy is a change in heat.

[Amy Huang]

Speaking from the perspective of calculation, Enthalpy can be calculated by dividing heat with amount of substance (mole).

[Preethika Praveen 2G]

Heat is defined as the transfer of energy as a result of a difference in temperature. However, enthalpy is the heat that is released or absorbed in chemical reactions at constant pressure