Insert numbers next to these steps to show the correct order of events for a fuel cell to work. (1 - first step, 5 - last step). At the anode, the H2 loses electrons and becomes H+

At the cathode, H+ ions combine with electrons and O2 to produce H2O.

Electrons (e-) flow through the wire to produce electricity.

Fuel (H2) is pumped into the cell.

H+ flows through the electrolyte to the cathode.

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

0.88m hope i am correct : )