When 6 g of granulated Zn is added to a solution of 2 M HCl in a beaker at room temperature, hydrogen gas is generated. How would the rate be affected if, at constant volume of the acid, 6 g of powdered Zn is used. The rate of hydrogen gas evolution will be ______.

Powdered zinc has a greater surface area than zinc granules. If the same mass of zinc and volume of acid is used, it will be observed that the powdered zinc will react faster since it provides a greater surface area for reaction compared to zinc granules. The greater the available surface area of reactants, the greater the rate of reaction. Higher surface area means that more particles are available for reaction.

Eduard22sly Eduard22sly · Answer 2 · 2022-03-29T16:06:01+02:00

The rate of hydrogen gas evolution from the reaction when powdered Zn is used will increase

What is rate of reaction?

The rate of a chemical reaction is simply defined as number mole, volume or concentration of reactant converted or product formed per unit time

Factors affecting rates of reaction

Nature of reactants
Concentration and pressure (for gases) of reactants
Reaction temperature
Surface Area of reactants
Light
Catalyst

From the question given above, our focus is on the surface area of the reactant.

The greater the surface area of the reactants, the greater the rate of the reaction.

Zn power has a greater surface area than Zn granule.

Thus, we can conclude that if 6 g of powdered Zn is used, the rate of hydrogen gas evolution will increase

Learn more about rates of reaction:

https://brainly.com/question/2455381