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fiasKO [112]
3 years ago
5

Why doesn’t a broken wineglass spontaneously fix itself, from a thermodynamic point of view?

Chemistry
2 answers:
Alla [95]3 years ago
8 0
The answer is the option<span> 3.) Fixing a wineglass requires a large decrease in entropy.



Entropy is a termodynamical variable and it is defined as the degree of disorder of the system.



As per the second law of thermodynamics the spontaneous changes only occur when the entropy increases.



</span>Fixing the broken glasses by itself meant to decrease the entropy spontaneusly which violate the principle or second law of thermodynamics. So, it is not possible.   
ale4655 [162]3 years ago
5 0
Fixing a wineglass will require a large decrease in entropy.
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if 0.0203 g of a gas dissolves in 1.39 l of water at 1.02 atmospheres at what pressure (in atm) would you be able to dissolve 0.
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First, we need to get n1 (no.of moles of water ): when

mass of water = 0.0203 g and the volume = 1.39 L

∴ n1 = mass / molar mass of water

        = 0.0203g / 18 g/mol
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then we need to get n2 (no of moles of water) after the mass has changed:

when the mass of water = 0.146 g

n2 = mass / molar mass

     = 0.146g / 18 g/ mol
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so by using the ideal gas formula and when the volume is not changed:

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and n1= 0.00113 moles

and n2 = 0.008 moles 

so we solve for P2 and get the pressure

∴P2 = P1*n2 / n1

        =1.02 atm *0.008 moles / 0.00113 moles

       = 7.22 atm

∴the new pressure will be 7.22 atm


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