Question

Liquefied petroleum (LP) gas burns according to the following exothermic reaction: C3H8(g)+5O2(g)→3CO2(g)+4H2O(g)ΔH∘rxn=−2044kJ . Part A What...

Liquefied petroleum (LP) gas burns according to the following exothermic reaction:

C3H8(g)+5O2(g)→3CO2(g)+4H2O(g)ΔH∘rxn=−2044kJ

.

Part A

What mass of LP gas is necessary to heat 1.8 L of water from room temperature (25.0 ∘C) to boiling (100.0 ∘C)? Assume that, during heating, 14% of the heat emitted by the LP gas combustion goes to heat the water. The rest is lost as heat to the surroundings.

Express your answer using two significant figures.
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