which combination of factors will result in the fastest reaction rate?\n0.5 m hcl at 15 °c with zn…

which combination of factors will result in the fastest reaction rate?\n0.5 m hcl at 15 °c with zn powder\n0.5 m hcl at 25 °c with zn foil\n1.0 m hcl at 35 °c with zn powder

which combination of factors will result in the fastest reaction rate?\n0.5 m hcl at 15 °c with zn powder\n0.5 m hcl at 25 °c with zn foil\n1.0 m hcl at 35 °c with zn powder

Answer

Explanation:

Step1: Consider concentration effect

Higher concentration of reactant (HCl) generally increases reaction rate. 1.0 M HCl has a higher concentration than 0.5 M HCl.

Step2: Consider temperature effect

Higher temperature increases the kinetic energy of reactant particles, leading to more frequent and energetic collisions, thus increasing reaction rate. 35°C > 25°C > 15°C.

Step3: Consider surface - area effect

Powdered substances have a larger surface - area to volume ratio compared to foils. Larger surface area allows for more contact between reactants, increasing reaction rate. Zn powder has a larger surface area than Zn foil.

Answer:

1.0 M HCl at 35°C with Zn powder