An electric element/halogen lamp sits under the cooktop giving off thermal energy, but how is this heat only localised to the element and doesn't warm up the rest of the glass/ceramic?Which thermal property is responsible for this?Processing determines microstructure, which determines the propertiesIs it because of 1- directional grains/crystal?
They use CERAN (TM) by SchottBecause of its low transverse heat conductivity, neighboring areas of the cooking zone stay relatively cool and the heat is transmitted directly to pots and panssee source.
This reaction occurs because Al is above Cu in the activity series.Al is oxidized and the copperis reduced 2 Al^0(s) + 3Cu2+(aq) - 2 Al3+(aq) + 3 Cu^0(s)
appropriate you're watching basically worry-unfastened atoms of relyProtons are somewhat charged debris, the quantity of protons an atom has determines the form of atom itselffor example one proton is hydrogen, six protons is for carbon, etcThe neutrons are have not have been given any can charge in an atom, and help stabilize the atomundergo in techniques like expenses repel eachother, neutrons carry the protons at the same timeThey the two have basically approximately the comparable massfinally electrons have a adverse can charge and bypass around atoms in unpredictable techniquesThe closer the kind of electrons there are in an atom to protons, the greater impartial that'sAn atom is impartial at the same time as there are 8 valence electrons indoors the outer shell distinctive than fir helium with basically 2undergo in techniques, that's basically your undertaking-loose grade 9 stuff, now no longer the actual fact i understand.
The aluminum metal appears to be turning into copper, but it is actually just removing the metallic copper from its compound stateThe Aluminum is oxidized and loses e-, becoming Al 3+ and the copper ions are reduced (they accept those e-) to form solid copper precipitateThe aluminum ions and chloride ions remain in the solutionThe reaction will only occur in water and occurs because the transfer of electrons from the aluminum to the copper results in a more stable system.
