You make an afternoon snack for your two children by slicing an apple into four quarters. Each child eats one quarter of the apple and decides that they are ready to go outside to play. Your perfect child puts the extra quarter apple into the refrigerator while your almost perfect child leaves the apple on a plate on the counter. Use your understanding of kinetics to provide a thorough explanation of why the apple on the counter is mostly brown when you find it while the apple in the refrigerator is only slightly brown.
The process taking place here is oxidation of iron to Fe3+ in the presence of atmospheric oxygen.
Fe - - - > Fe3+ (brown color)
In the open outside, temperature is high. so rate of the reaction will also increase. so rate of oxidation of iron enhances, thereby producing quick brown colour.
on the contrary, since temperature inside the refrigerator is low, which decreases the rate of the oxidation. so, the Apple kept inside it, appears to be brown at a slower rate.
You make an afternoon snack for your two children by slicing an apple into four quarters....