Gas cars use fuel pretty efficiently. Petrol and gas are excellent fuels to burn, and pretty easy to burn them.
I am not sure what you mean by : "gas cars waste lots of energy in the form of heat" since this is the exact point! you burn gas to make it to thermal energy that in turn converts to mechanical energy. Sure there is thermal energy that unavoidably escapes (as "heat" ) that cannot be harvested and converted to mechanical energy, but modern car designs have made their best via better engineering to minimise such losses.
For the water-based car you use electrical energy. Electrical energy which as explained before is used in a still VERY crude way to convert to thermal energy (water being the "medium" ). They are wasteful any way you think of it. A litre of water for instance will not convert to the same amount of thermal energy as a litre of petrol. Petrol (or other fossil fuel) are very very good at giving thermal energy.
This is how things are:
gasoline burning ---> mechanical energy (car moves) + heat (energy loss)
and for the "water" car:
electricity ---> oxyhydrogen + Heat
oxyhydrogen ---> mechanical energy + heat
But we should also not forget: where did we got the electricity in the first place?
petrol fuel/nuclear/aeolian/solar etc energy ---> electricity + Heat
And what we try to explain you as far as the "water thing" is concerned is that:
Why not go straight from electrical power to mechanical energy?
electricity -----> mechanical energy + heat?
So, why bother about energy losses through oxyhydrogen production? This makes utterly no sense.
I am not sure what you mean by : "gas cars waste lots of energy in the form of heat" since this is the exact point! you burn gas to make it to thermal energy that in turn converts to mechanical energy. Sure there is thermal energy that unavoidably escapes (as "heat" ) that cannot be harvested and converted to mechanical energy, but modern car designs have made their best via better engineering to minimise such losses.
For the water-based car you use electrical energy. Electrical energy which as explained before is used in a still VERY crude way to convert to thermal energy (water being the "medium" ). They are wasteful any way you think of it. A litre of water for instance will not convert to the same amount of thermal energy as a litre of petrol. Petrol (or other fossil fuel) are very very good at giving thermal energy.
This is how things are:
gasoline burning ---> mechanical energy (car moves) + heat (energy loss)
and for the "water" car:
electricity ---> oxyhydrogen + Heat
oxyhydrogen ---> mechanical energy + heat
But we should also not forget: where did we got the electricity in the first place?
petrol fuel/nuclear/aeolian/solar etc energy ---> electricity + Heat
And what we try to explain you as far as the "water thing" is concerned is that:
Why not go straight from electrical power to mechanical energy?
electricity -----> mechanical energy + heat?
So, why bother about energy losses through oxyhydrogen production? This makes utterly no sense.