QUESTION 26 Given the electrochemical reaction shown, what is the standard free energy change (AG°) if E° = +1.61v ? Mg + Zn +2 --> Mg +2 + Zn O-311 kJ/mole O +311 kJ/mole none of the above O-155 kJ/mole O+155 kJ/mole

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Batteries

A battery is simply an electrochemical cell or group of cells that generate electric current. Batteries are the devices that generate current using redox reactions. These reactions proceed by the transfer of electrons. An ideal battery or cell should produce a constant voltage. A battery should actually be light in weight.