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Hellen Truong 2J
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Postby Hellen Truong 2J » Sat Jan 20, 2018 2:45 pm

Why is enthalpy related to heat under constant pressure but not constant volume? What is the difference between enthalpy and heat in general?

Emma Ward 2C
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Re: Enthalpy

Postby Emma Ward 2C » Sat Jan 20, 2018 3:58 pm

Heat is the energy transferred from a system to its surroundings and enthalpy is the measurement of the amount of heat that was exchanged.

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Re: Enthalpy

Postby SitharaMenon2B » Sat Jan 20, 2018 7:37 pm

Enthalpy measures the heat given off or absorbed when a reaction is held at a constant pressure. When it's not constant pressure, it's just heat, not enthalpy.

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Re: Enthalpy

Postby KayleeMcCord1F » Sun Jan 21, 2018 7:07 pm

The enthalpy of a system is the total amount of heat present in it.

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