Subject: Chemistry
Book: General Chemistry
Hess’s law states that if a reaction can be expressed as a series of steps, the enthalpy change for the overall reaction is the sum of the enthalpy changes for each step. This allows calculation of ΔH for reactions where direct measurement is difficult. By utilizing tabulated formation or combustion enthalpies, Hess’s law simplifies thermodynamic analysis in both theoretical and practical contexts.
Which element is the lightest in the periodic table?
View QuestionWhat is the chemical formula for propanol?
View QuestionWhich gas is used in neon signs?
View QuestionWhich element is represented by the symbol 'Pb'?
View QuestionWhich element has the atomic number 79?
View QuestionWhich gas is most abundant in Earth's atmosphere?
View QuestionWhat is the chemical formula for potassium permanganate?
View QuestionWhat is the chemical formula for carbon tetrachloride?
View QuestionWhich compound is commonly known as ammonium nitrate?
View QuestionWhat is the chemical formula for sodium silicate?
View Question