Question

How is enthalpy used in real life?​

Answer 1

Answer: Enthalpy can be used in a variety of laws and equations. Other groups will cover these applications.

Change in enthalpy can apply to refrigerators and hand warmers. In a fridge, refrigerants such as Freon are evaporated. The enthalpy of vaporization (liquid to gas energy change) is equivalent to the coldness of your food.

Some people use chemical heat packs (hand warmers) outside. When you shake the pack, it begins to heat your hands. Various reactants inside the pack are exposed to air. This is another example of change in enthalpy.

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Answer 2

Enthalpy is a state function.

In real life change in enthalpy is used in refrigerators, freezing, cold packs, and hand warmers

Explanation:

• The value of enthalpy depends on the initial and final state of the system
• Every chemical process is involved with a certain amount of enthalpy values.
• There are certain values of enthalpies for certain reactions
• Enthalpy input involves electrical and thermal inputs of oxidant carrier, enthalpy of inert gases, enthalpy of water input.
• Enthalpy outputs include heat loses and usable heat, usable electrical power, enthalpy of discharge water.
• Enthalpy is the sum of internal energy of the system plus the product of   the pressure of gas and volume of gas. H=U +PV
• Enthalpy of a gas decrease with pressure at a constant temperature.