Question

In: Chemistry

Predict whether the entropy chnage is greater or less than zero for each of the following...

Predict whether the entropy chnage is greater or less than zero for each of the following processes:
a) freezing ethanol
b) evaporating a beaker of liquid bromine at room temperature
c) dissolving glucose in water
d) cooling nitrogen from 80 degrees celsius
to 20 degrees celsius

Please explain.

Solutions

Expert Solution


Related Solutions

For each, indicate whether the first item is (greater than, equal to, less than) the second...
For each, indicate whether the first item is (greater than, equal to, less than) the second item oxygen content in the pulmonary veins      ___________       oxygen content in the carotid arteries Answer 1Choose...greater thanequal toless than maximum pressure in the aorta ___________     maximum pressure in the left atrium   Answer 2Choose...greater thanequal toless than blood flow through the lungs ____________ blood flow through the kidneys Answer 3Choose...greater thanequal toless than flow of blood through a dilated vessel _____________ flow of blood through...
Predict whether the entropy change is positive or negative for each of the following reactions. a....
Predict whether the entropy change is positive or negative for each of the following reactions. a. 2KClO4(s) --> 2KClO3(s)+O2(g) b. H2O(g) --> H2O (l) c. 2Na(s)+2H2O(l)-->2NaOH(aq)+H2(g) d. N2(g)-->2N(g)
For each of the following, fill in the blanks with "Less than", "Greater than", or "Equal...
For each of the following, fill in the blanks with "Less than", "Greater than", or "Equal to" *) A gas flows through a one-inlet, one-exit control volume operating at steady state with no internal irreversibilities, Qcv = 0. Heat transfer at a rate Qcv takes place only at a location on the boundary where the temperature is Tb. The specific entropy of the gas at the exit is _____ than the specific entropy of the gas at the inlet. *)...
Predict whether van’t Hoff factor, (i) is less than one or greater than one in the following: (i) CH3COOH dissolved in water. (ii) CH3COOH dissolved in benzene.
Predict whether van’t Hoff factor, (i) is less than one or greater than one in the following: (i) CH3COOH dissolved in water. (ii) CH3COOH dissolved in benzene.
predict the sign of the entropy change of the system for each of the following. justify...
predict the sign of the entropy change of the system for each of the following. justify your answer. a. CO(g) + 2H22(g) = CH3OH (l) b. molten Fe solidifies c. silver bromide precipitates upon mixing AgNO3 (aq) and KBr(aq) d. Zink metal dissolves in hydrochoric acid forming ZnCl2(aq) and H2(g)
Will the pH of the following compounds be less than 7, greater than 7, or approximately...
Will the pH of the following compounds be less than 7, greater than 7, or approximately equal to 7? A) ammonium iodide B) barium nitrite C) barium bromide D) ammonium chloride
In each of the following cases, predict the sign of change in entropy by providing proper...
In each of the following cases, predict the sign of change in entropy by providing proper explanation.                                                                                                                                                            (i) Isothermal expansion.       (ii) Liquefaction of a gas
Predict the sign of the entropy change for each of the following processes and give your...
Predict the sign of the entropy change for each of the following processes and give your reasoning why: 1. Solid sugar is added to water to form a solution. 2. Iodine vapor condenses on a cold surface to form crystals. 3. N2(g) + 3H2(g) 2 NH3(g) 4. H2O(l) H2O(g) 5. CaCO3(s) CaO(s) + CO2(g) 6. NH4NO3(s) + H2O(l) NH4+(aq) + NO3-(aq) Please let me know why for each questions
Predict the sign of the entropy change for each of the following processes and give your...
Predict the sign of the entropy change for each of the following processes and give your reasoning why: 1. Solid sugar is added to water to form a solution. 2. Iodine vapor condenses on a cold surface to form crystals. 3. N2(g) + 3H2 (g) 2 NH3(g) 4. H2O(l) H2O(g) 5. CaCO3(s) CaO(s) + CO2(g) 6. NH4NO3(s) + H2O(l) NH4+ (aq) + NO3- (aq) 7. freezing of water    8. boiling of water 9. crystallization of salt from a supersaturated...
Predict the sign for the entropy change ΔSsys for each of the following reactions without doing...
Predict the sign for the entropy change ΔSsys for each of the following reactions without doing any calculations and explain your reasoning. a.Mg(s) + Cl2(g) MgCl2(s) b.HCl(g) + NH3(g) NH4Cl(s) c.2 O3(g) 3 O2(g) d.CH3CH3(g) H2C=CH2(g) + H2(g)
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT