20. Electrochemistry
Electroplating
39PRACTICE PROBLEM
The unit used to express the capacity of batteries is milliamp-hours (mAh). A fresh alkaline battery has a normal capacity of 2500 mAh and starting voltage of 1.50 V. When the battery has delivered its rated capacity, its voltage decreases to 0.75 V during discharge. Estimate the total maximum electrical work that the battery could perform during discharge if we assume that voltage declines linearly as current is withdrawn.
The unit used to express the capacity of batteries is milliamp-hours (mAh). A fresh alkaline battery has a normal capacity of 2500 mAh and starting voltage of 1.50 V. When the battery has delivered its rated capacity, its voltage decreases to 0.75 V during discharge. Estimate the total maximum electrical work that the battery could perform during discharge if we assume that voltage declines linearly as current is withdrawn.