How Temperature Affects the Rate of a Reaction

Question Which reaction mixture will have the fastest initial rate The mixture in (c) is fastest because it has the highest temperature. 

The rate of a chemical reaction generally increases with increasing temperature of the reaction mixture. 

The temperature dependence of reaction rates is the reason that cold-blooded animals become more sluggish at lower temperatures. The reactions required for them to think and move become slower, resulting in tiie sluggish behavior. 

Reaction rates generally increase with increasing reactant concentration. Reaction rates generally increase with increasing temperature. 

Reaction rates generally decrease as a reaction proceeds. 

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A student was investigating how temperature affects the rate of a reaction between magnesium and dilute hydrochloric acid. The student decided to measure the volume of gas given off in 30 seconds for different concentrations of acid. She decided to use temperatures of 10,20,30,40 and 50°C. a Name the independent variable, b Name the dependent variable, c List two control variables, d Give the range of the independent variable, e What is the value of the interval chosen for the independent variable ... 

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