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A spontaneous reaction favours the product formation and increases the entropy of the isolated system. The sign of the entropy change will be negative as the product formation is less random.
<h3>What is entropy?</h3>
Entropy is the degree of the disorder or randomness that occurs in the system that lacks available energy and cannot convert the mechanical energy or work.
The entropy of the reaction will be negative as the reactants are present in the gaseous state and the product formed is solid. The product formation was spontaneous and less random.
Therefore, option a. entropy will be negative as product formation is less random.
Learn more about entropy here:
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Answer:
Weather forecasts are made by collecting as much data as possible about the current state of the atmosphere (particularly the temperature, humidity and wind) and using understanding of atmospheric processes (through meteorology) to determine how the atmosphere evolves in the future.
Doppler radar. A National Weather Service Doppler radar tower in Springfield, Missouri. ( ...
Satellite data. GOES-16, NOAA's newest weather satellite, launched in late 2016. ( ...
Radiosondes. ...
Automated surface-observing systems. ...
Supercomputers. ...
AWIPS.
Explanation:
Answer:
Explanation:
Identify all of the compounds present:
- aqueous copper(II) sulfate: we have copper charged as 2+, sulfate anion has a charge of 2-. This means the charges are balanced if we take 1 ion of each to give ;
- solid iron metal: iron metal is Fe, then including the state of iron, we have ;
- aqueous iron(II) sulfate: iron has a charge of 2+, sulfate has a charge of 2-, so the positive charge balances the negative charge to give a formula of ;
- solid copper metal: copper metal is Cu, then including the state of copper, we have .
We then have a reaction:
Here we go ~
Energy difference btween the two electronic states can be expressed as :
[ h = planks constant,= frequency ]