ATP is hydrolyzed into ADP in the following reaction: ATP+H 2 OâADP+P i +free energy. Like most chemical reactions, the hydrolysis of ATP to ADP is reversible. The reverse reaction combines ADP + P i to regenerate ATP from ADP. Since ATP hydrolysis releases energy, ATP synthesis must require an input of free energy. ADP is combined with a phosphate to form ATP in the following reaction: ADP+P i +free energyâATP+H 2 O. ATP and Energy Coupling
Getting Started. Fouled, damaged, or worn out spark plugs can lead to a variety of engine problems, such as misfires, hard starts, increased emissions, and poor fuel economy. For most vehicles, you should replace your spark plugs every 30,000 miles (consult your owner's manual for your specific interval).
If your spark plugs fail, your car wonât run. If your spark plugs are in poor condition, your car will not run well and your fuel economy will suffer. What does an average spark plug replacement cost. The cost to replace spark plugs varies significantly based on the type of car you have and where you take your car.ypically a spark plug replacement at a qualified auto repair shop will cost between $100 and $200. A Toyota Camry will likely be on the lower end of the range, while a Mercedes-Benz sedan will be on the higher end of that range (or even exceed the range depending on the model and where you take the car for the repair).