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what is the reaction at the anode in electrolysis of aqueous copper sulphate using copper electrodes and what is the difference when carbon electrodes are used ?
Physics: Efficiency, how do you know which is the output energy and the input energy?
Also, what is the process of electricity generation? I know the block diagram, but not the process.
They'll always mention which is the output, and which is input.
Input energy = Useful output + wasted output.
So if let's say, 100 J of Electrical energy is supplied to the bulb and is being converted into 60 J of light energy.. you should know that 60 J is the useful output energy, and 40 J is the wasted output.. and 100 J the total input energy supplied to the bulb.
The process of Electricity generation depends on the type of process you are talking about.
There are various ways to generate electricity.
Hydro-electric stations use the force of moving water to spin the turbines that are connected to AC generators that generate electricity.
Solar uses the light of the sun to heat boilers and convert water to steam which is used to run the turbines.
Fossil Fuel powered stations use the heat produced from burning fossil fuels to convert water into steam, and then the steam goes up and strikes the turbines, causing them to spin. The spinning of the turbines leads to electricity generation.
The basic principle of Electricity Generation involves the AC-Generator. The AC generator involves a rotating coil placed between a magnetic field.
Now, these various power stations, there purpose is to somehow rotate this coil.. so they connect the coil to a turbine.
And using various methods; Solar, Wind, HEP, Tidal, Geo-thermal.. they make the turbines rotate, which in turn rotates the coil, and the rotation of the coil leads to change of the magnetic flux between the two magnets which induces an electric current. So Electricity is generated and transfered to the transformers which change the voltage to allow transmission to our houses, and factories and stuff.
Thank you so much. I have a few other questions as well.
1. In the physics syllabus it says, discuss the efficiency of energy conversions in common use, particularly those giving electrical output.
2. It also says that, discuss the usefulness of energy output from a number of energy conversions.
What does these two mean?
In the electrolysis of concentrated aqueous compounds, is Hydrogen always formed at the cathode?
You are doing a mistakeThe Hydroxide ions get discharged at the anode, since there are two anions: Sulphate and Hydroxide.
Hydroxide is easier to discharge.
Oxygen gas is produced at anode.
Cu electrodeswhat is the reaction at the anode in electrolysis of aqueous copper sulphate using copper electrodes and what is the difference when carbon electrodes are used ?
Gus can anyone give complete note of organic chemistry? please someone?
Thanks alotHere you go
Someone solve this please!
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thanks
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