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Original Question
Calculate the entropy change when 2.42 g of H2 reacts with O2 according to the reaction 2 H2(g) + O2(g) → 2 H2O(ℓ) at 298 K and...Asked by christinee
Calculate the entropy change when 5.58 g of H2 reacts with O2 according to the reaction
2 H2(g) + O2(g) → 2 H2O(l)
at 298 K and 1 atm pressure. The stan- dard molar enthalpy of formation of H2O(l) at 298 K is −285.8 kJ/mol. The correspond- ing free energy of formation is −237.2 kJ/mol.
Answer in units of J/K.
2 H2(g) + O2(g) → 2 H2O(l)
at 298 K and 1 atm pressure. The stan- dard molar enthalpy of formation of H2O(l) at 298 K is −285.8 kJ/mol. The correspond- ing free energy of formation is −237.2 kJ/mol.
Answer in units of J/K.
Answers
Answered by
DrBob222
dG = dH - TdS
The problem gives you dG and dH and T. Solve for dS.
You will need to start by converting 5.58 g to mols. I assume we are to assume the amount of oxygen is an adequate amount. Post your work if you get stuck.
The problem gives you dG and dH and T. Solve for dS.
You will need to start by converting 5.58 g to mols. I assume we are to assume the amount of oxygen is an adequate amount. Post your work if you get stuck.
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