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☆☆☆☆☆the study of the movement of energy and heat.
or
Thermodynamics is the branch of physics concerned with the conversion of different energy forms.
•DeltaG (rxn) = DeltaG (pdts) - DeltaDG (rcts) •DeltaG°(rxn) = -R T ln K •
A semiconductor is a solid whose electrical conductivity is in between that of a conductor and that of an insulator, and can be controlled over a wide range, either permanently or dynamically.
Semiconductor materials can be elements (e.g. germanium, silicon), compounds (e.g. copper oxide, lead sulfide), or metal alloys (e.g. gallium arsenide, gallium aluminum indium phosphide).
A pure semiconductor material is a very poor conductor or even an insulator, but when impurities called dopants are added it can become a quite good conductor. There are two classes of dopants: N type and P type. N type dopants create negatively charged current carriers (i.e. free electrons) in the semiconductor, just like ordinary conductors use. P type dopants create positively charged current carriers (i.e. holes) in the semiconductor. (Note: dopants do no make the semiconductor material electrically charged.) Because semiconductors have two different types of current carrier (not just the one that ordinary conductors have), it is possible to create junctions between differently doped parts of semiconductor material that conduct in one direction but not the other, or due to quantum mechanical effects do other useful things.
Semiconductor is a material that has the electrical conductivity between that of a conductor and an insulator. Silicon, germanium and graphite are some examples of semiconductors.
Source : Physics and Radio-Electronics ( website)
it is a solid material that has conductivity somewhere between a metal and that of a good insulator, due to addition of some impurity or due to temperature. Most electronic components are semiconductors.
Temperature measures how fast molecules are moving or in scientific terms it measures the AVERAGE KINETIC ENERGY in a system. Temperature measures how fast molecules are moving. :):)
Changing the temperature will change Keq. (apex.)
Its polar end mixes with the water so it can be washed away. ~APEX
Adding a solute to a solution, or some liquid, causes the boiling point to increase.
Think about water, sometimes people throw salt in their water when they're boiling noodles. This causes the boiling point to increase so the water is actually at a higher temperature (although most of the time the amount of salt added isn't nearly enough to cause any measurable change).
Gases have the highest kinetic energy, followed by liquids, and then solids. -apex
- The conditions in which a substance exists in a certain phase. ^.^
The molar mass of sodium chloride is 58,439 769 28 ≈ 58,44 g.
10 g NaCl in 2 kg water is 5 g/1 kg.
This is equal to 5/58,44, so 0,0855 mol.
hydrogen bonding
A solid that has hydrogen bonding would melt the easiest.
a diagram showing the effects of temperature and pressure on phase
Dirt is a heterogeneous mixture.
