Consider the reaction: C₃H₈(g)+ 5 O₂(g)→ 3 CO₂(g)+ 4 H₂O(g),where ΔH = -531 kcal/mol. How much heat is released when 3.40 × 10²⁰ molecules of C₃H₈(g)is burned?

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The reaction releases 531 kcal per mole of C3H8. First, convert molecules to moles using Avogadro's number (6.022 × 10^23 molecules/mol). Then, calculate the heat released: (3.40 × 10^20 molecules) / (6.022 × 10^23 molecules/mol) × 531 kcal/mol = 0.300 kcal.

Consider the Reaction: C3H8(g)+ 5 O2(g)→ 3 CO2(g)+ 4 H2O(g),where

Consider the Reaction: C₃H₈(g)+ 5 O₂(g)→ 3 CO₂(g)+ 4 H₂O(g),where