Given the balanced chemical equation: 3C3H8 + 5O2 > 3CO2 + 4H2O

How many moles of carbon dioxide, CO2 will be produced if 6 moles of propane, C3H8, are consumed?

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)