A riddle u cant solve
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28 Sep 2006, 19:24
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Journals
I'm interest if somebody can solve this:
i need the standard formationenthalpy for hydrazin
In thermodynamics, the quantity enthalpy, symbolized by H, also called heat content, is the sum of the internal energy of a thermodynamic system plus the energy associated with work done by the system on the atmosphere, which is the product of the pressure times the volume. The term enthalpy is composed of the prefix en-, meaning to "put into", plus the Greek suffix -thalpein, meaning "to heat".
The standard enthalpy of formation or "standard heat of formation" of a compound is the change of enthalpy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states (the most stable form of the element at 100 kPa of pressure and the specified temperature, usually 298 K or 25 degrees Celsius). Its symbol is ΔHfO.
i need this not for gasoline, i need this in mol
it is N2h4
CAS Number 302-01-2
Oh it must be the normal standard formationenthalpy and not the free one.
excuse my bad languagestyle.
and yes, it was posted before
thx 4 reading :*
i need the standard formationenthalpy for hydrazin
In thermodynamics, the quantity enthalpy, symbolized by H, also called heat content, is the sum of the internal energy of a thermodynamic system plus the energy associated with work done by the system on the atmosphere, which is the product of the pressure times the volume. The term enthalpy is composed of the prefix en-, meaning to "put into", plus the Greek suffix -thalpein, meaning "to heat".
The standard enthalpy of formation or "standard heat of formation" of a compound is the change of enthalpy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states (the most stable form of the element at 100 kPa of pressure and the specified temperature, usually 298 K or 25 degrees Celsius). Its symbol is ΔHfO.
i need this not for gasoline, i need this in mol
it is N2h4
CAS Number 302-01-2
Oh it must be the normal standard formationenthalpy and not the free one.
excuse my bad languagestyle.
and yes, it was posted before
thx 4 reading :*
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