Combustion of hydrocarbons such as butane (C4H1o) produces carbon dioxide, a \"g

Question

Combustion of hydrocarbons such as butane (C4H1o) produces carbon dioxide, a "greenhouse gas." Greenhouse gases in the Earth's atmosphere can trap the Sun's heat, raising the average temperature of the Earth. For this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide. I state symbols, for the combustion of gaseous butane into gaseous carbon dioxide and gaseous water 2 2. Suppose 0.350 kg of butane are burned in air at a pressure of exactly 1 atm and temperature of 11.0 °C. Calculate the volume of carbon dioxide gas that is produced. Round your answer to 3 significant digits. Check Explanation

Explanation / Answer

Solution:- (1) 2C4H10(g) + 13O2 (g) ------> 8CO2(g) + 10H2O(g)

(2) given kg of butane are converted to grams and then moles. using mol ratio the moles of carbon dioxide are calculated and finally using the ideal gas equation the volume of carbon dioxide is calculated.

0.350 kg C4H10 x (1000g/1kg) x (1mol/58.14g) x (8 mol CO2/2mol C4H10) = 24.1 mol CO2

P = 1 atm

T = 11.0 degree C = 11.0 + 273 = 284 K

R = 0.0821 atm.L.mol-1.K-1

n = 24.1 mol

PV = nRT

V = nRT/P

V = 24.1 x 0.0821 x 284/1

V = 562 L

So, 562 L of CO2 are formed.

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