The half-reaction of the anode in an electrochemical cell is given below. what other half-reaction would most likely occur at the cathode to produce a non-spontaneous reaction? Ag(s)→Ag⁺(aq)+e⁻

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?