Enthalpy of formation is defined as the heat change that is needed for formation of one mole of substance from its constituent elements in pure state.
In present case, Heat of formation of one mole of C2H6 at <span>101.3 kpa and 298 k is -84 kJ/mol. Negative sign indicates that, heat is evolved from the system.
Thus, for two mole of ethane, heat of formation will be 2 X (-84) = -168 kJ/mol.
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Boyle's law which plays a major role in the kinetic-theory states that Volume and Pressure are inversely proportional
Answer:
0.1
Explanation:
Using Henderson-Hasselbalch equation
pH = pKa + log ( base / acid )
pH= 9.0 , pKa = 10.0
9.0 = 10 + log ( base / acid )
9 - 10 = log ( base / acid )
10⁻¹ = ( base / acid )
( base / acid ) = 0.1
7 is correct but anything higher is considered alkaline. It's called base. anything lower is acidic!
Answer:
C. identifying the half reactions
Explanation: