which of the following would most likely increase the rate of gasoline burning? c₈h₁₈ + o₂ → co₂ +…
which of the following would most likely increase the rate of gasoline burning? c₈h₁₈ + o₂ → co₂ + h₂o\ndecreasing the temperature\nmixing gasoline and oxygen\nmaking the reactants solids\ndecreasing the concentration of oxygen in the air
Answer
Explanation:
Step1: Recall reaction - rate factors
Reaction rate of a combustion reaction like gasoline burning depends on temperature, concentration of reactants, and physical state of reactants.
Step2: Analyze temperature effect
Decreasing temperature slows down reaction rate as it reduces kinetic energy of molecules. So, decreasing temperature is incorrect.
Step3: Analyze mixing effect
Mixing gasoline and oxygen ensures better contact between reactant molecules, increasing the frequency of effective collisions and thus increasing the reaction rate.
Step4: Analyze physical - state effect
Making reactants solids reduces surface - area to volume ratio and decreases the reaction rate as reaction occurs at the surface of solids.
Step5: Analyze oxygen - concentration effect
Decreasing oxygen concentration reduces the number of oxygen molecules available for reaction, decreasing the reaction rate.
Answer:
Mixing gasoline and oxygen