Thermodynamics

Heat capacity of a stove made of different materials

Heat capacity of objects

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Heat capacity is the amount of heat required to raise the temperature of an object by 1 Kelvin (1 °C). Learn more about it in this article. Specific heat capacity of substances The...
Reducing the temperature of water by releasing energy as heat to ice cubes

Important remarks on the specific heat capacity

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https://www.youtube.com/watch?v=0JZOK2hcQok Definition of the specific heat capacity The specific heat capacity c describes the relationship between a transfer of heat Q and the associated temperature change ΔT of a substance of mass m: begin{align}label{q}&...
Operating principle of a heat pump (conversion of work into heat)

The process quantities: Heat and work

Work and heat are process quantities that describe the process of a supply of energy ("energy in transit")! Learn more about it in this article. Work and heat transferred to a substance Energy...
Sprinkling a grapevine with water as frost protection

Vineyard Frost Protection (sprinkling with water)

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With sprinklers for frost protection, the crop stays protected from low temperatures by the heat of solidification released when the water freezes. https://www.youtube.com/watch?v=bh43jUpB_F4 If growing fruits are exposed to sub-zero temperatures (frost) on...
Expansion of a gas in an adiabatic system with and without dissipation of energy (friction)

Dissipative thermodynamic processes in adiabatic systems

In this article, learn more about dissipative thermodynamic processes using the polytropic equations. Work performed in adiabatic systems Many thermodynamic processes take place within very short times, such as the expansion of the...
Heating a pot of water with a sausage in it

Heating and cooling of several objects

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Learn more about calculating the final temperature of several objects with different temperatures in this article. Heating of several objects In practice, when heating or cooling objects, one usually has to deal with...
Energy flow diagram considering friction (dissipative process)

Dissipation of energy in closed systems

Learn in this article why, in thermodynamic processes with dissipation of energy, the pressure-volume work of the gas does not correspond to the work done by the system. Pressure-volume work (displacement work) In...