Recall that for enthalpy of formation (ΔH) corresponds to ONE mole of the product. This means that for the formation of 1 MOLE of H2S, heat released (-ΔH) is -20.2 kJ
Setup a dimensional analysis using the stoichiometry of S8 and H2S
Consider the following balanced thermochemical equation for a reaction sometimes used for H2S production:
1/8S8 (s) + H2 (g) ⟶ H2S (g) ΔH = −20.2 kJ
What is ΔH when 2.6 mol of S 8 reacts?
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Enthalpy of Formation concept. You can view video lessons to learn Enthalpy of Formation. Or if you need more Enthalpy of Formation practice, you can also practice Enthalpy of Formation practice problems.
What textbook is this problem found in?
Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.