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Blababa [14]
3 years ago
12

During the time 0.325 mol of an ideal gas undergoes an isothermal compression at 22.0∘c, 352 j of work is done on it by the surr

oundings. part a if the final pressure is 1.76 atm, what was the initial pressure?
Chemistry
1 answer:
Yuri [45]3 years ago
5 0
According to the equation of the work done W:
When W = nRT㏑(Pi/Pf) and we have:

W = 352 joule & n = 0.325 & T by kelvin = 22+273 = 295 K & Pf= 1.76

by the substitute: 

352 = (0.325 x 8.314 x 295)㏑(Pi/Pf)
∴㏑(Pi/Pf) = -352 / (0.325 x 8.314 x 295) 
㏑(Pi/Pf) = - 0.44
Pi/Pf = 0.644 
∴ Pi =1.76 x 0.644 = 1.13 atm

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After reading the information given, we can conclude that both reactants react to form a new solid product and another product that do not precipitate.

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c. The color change of the solution indicates a chemical reaction occurred  This option is true, when a color appears suggest the formation of a new product.

d. A chemical reaction occurred when silver nitrate was added to water

This option is not correct, in this process silver nitrate is dissolving in water but it is not a chemical reaction because matter does not change is nature.

e. A chemical reaction occurred when the solutions were combined  This option is true because silver nitrate and sodium chloride react to form a new product (solid formation and change in color).

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