In the diagram above, which of the curves represents the evolution of oxygen with time in the equation 2KClO3(s) → 2KCl(s) + 3O2(g)?
The curve that represents the evolution of oxygen over time for the reaction 2KClO\(_3\)(s) → 2KCl(s)+3O\(_2\)\(_g\) would start at a concentration of zero and then increase, with the rate of increase slowing down over time until it reaches a constant, maximum value.
At the beginning of the reaction (t=0), no oxygen has been produced. As the reaction proceeds, the amount of oxygen gas increases. The reaction rate is fastest at the start when the concentration of the reactant,
KClO\(_3\), is highest. As the reactant is consumed, the rate of the reaction slows down, which is reflected in the curve's slope becoming less steep. Once all of the KClO\(_3\) has reacted, the amount of oxygen produced will no longer increase, and the curve will flatten out.
There is an explanation video available below.
Contributions ({{ comment_count }})
Please wait...
Modal title
Report
Block User
{{ feedback_modal_data.title }}