Atype of anthracite contains 90% carbon by weight. how much co2 is produced from the combustion of 1 metric ton of this anthracite? how much co2 is produced from the combustion of 1 mcf (1,000,000 ft3 at standard conditions) of propane?

1) Chemical reaction: C + O₂ → CO₂.

m(anthracite) = 1 t · 10⁶g/t = 10⁶ g.

ω(C) = 90% ÷ 100% = 0.9.

m(C) = ω(C) · m(antracite).

m(C) = 0.9 · 10⁶ g = 9·10⁵ g.

n(C) = m(C) ÷ M(C).

n(C) = 9·10⁵ g ÷ 12 g/mol.

n(C) = 75000 mol; amount of substance.

From chemical reaction: n(C) : n(CO₂) = 1 : 1.

n(CO₂) = 75000 mol.

m(CO₂) = 75000 mol · 44 g/mol.

m(CO₂) = 3300000 g = 3300 kg = 3.3 t; mass of carbon dioxide.

2) Chemical reaction: C₃H₈ + 5O₂ → 3CO₂ + 4H₂O.

V(C₃H₈) = 10⁶ ft³ · 0.02833 m³/ft³.

V(C₃H₈)  = 28330 m³ = 22330000 L.

Vm = 22.4 L/mol; standard volume of ideal gas.

n(C₃H₈) = 22330000 L ÷ 22.4 L/mol.

n(C₃H₈) = 996875 mol.

From chemical reaction: n(C₃H₈) : n(CO₂) = 1 : 3.

n(CO₂) = 2,990,625 mol.

m(CO₂) = 1.3·10⁸ g.

c, liquids evaporate, creating a gas

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?