Help! Thank you! Consider the combustion of propane gas, C3H8(g) + 5O2(g) righta

Question

Help! Thank you!

Consider the combustion of propane gas, C3H8(g) + 5O2(g) rightarrow 3CO2(g) + 4H2O(I) Delta H Degree = - 2,220 kJ/mol Propane is often used for gas grills and is typically purchased by filling a propane tank with 20 pounds of propane. What is the enthalpy change when 17 pound of propane is burned? Use the conversion 1 lb = 454 g and express your answer in scientific notation. For example use 2.3e-5 to indicate a number such as 2.3 x 10-5. kJ What is the enthalpy change for 3 CO2(g) + 4 H2O(I) rightarrow 1 C3H8(g) + 5 O2(g) Hint, compare this equation to the combustion equation for propane. kJ

Explanation / Answer

answer to first part is - 3.9e5 kJ

answer to second part is 2,220 kJ

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