State the sign of ΔS in each of the following processes: HCl (g) + NH3 (g) ...
- State the sign of ΔS in each of the following processes:
- HCl (g) + NH3 (g) → NH4Cl (s)
- 2 SO2 (g) + O2 (g) → 2 SO3 (g)
The cooling of N2 gas from 20 °C to -50 °C.
My answer is that all 3 are negative. (a) solids have less entropy than gases, so the gases forming a solid would decrease entropy. (b) A decrease in the number of gas molecules would decrease the entropy. (c) A decrease in temp would decrease entropy. Am I correct?
Homework Answers
Yes you are right, in general entropy is freedom or randomness.
So in first gas changes into solid so randomness of the molecules decrease and entropy also.
Same as in second no. Of gases molecules decreases.
In third with decrease in temp thermal energy in this system dimimshing so the molecules doesn't have the energy to move freely so entropy decreases
Add Answer to:
State the sign of ΔS in each of the following processes:
HCl (g) +
NH3 (g) ...
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Ammonia and hydrogen chloride react to form solid ammonium chloride: NH3(g) + HCl(g) ---> NH4Cl(s) Two 2.00-L flask at 25 degrees celcius are connected by a valve. One flask contains 5.00 g of NH3(g) and the other contains 5.00 g of HCl(g). When the valve is opened, the gases react until one is completly consumed. a) Which gas will remain in the system after the reaction is complete? b) What will be the final pressure of the systerm after the...
predict the sign of the entropy change for each of the following processes: a) I2(s)---->2I(g) cannot...
predict the sign of the entropy change for each of the following processes: a) I2(s)---->2I(g) cannot predict negative positive b) 2Zn(s) + O2 (g) ---> 2ZnO(S) cannot predict positive negative c) N2 (g) + O2(g) ---> 2NO(g) negative postive cannot predict
3. Predict the sign (positive or negative) on the entropy change for each of these reactions....
3. Predict the sign (positive or negative) on the entropy change for each of these reactions. (a) 2 SO2 (g) + O2 (g) → 2 SO3 (g) Negative (b) 2 NH3 (g) → N2 (g) + 3 H2 (g) (c) CO (g) + 2 H2 (g) → CH3OH (1) 4. For the reaction: 2NO2 (g) + N204 (g) at 298 K, The value of AH° and AS™ are -58.03 kJ and -176.6J/K, respectively. (a) What is the value of AG°...
Use the following reactions to find H when 1 mole of HCl gas forms from its elements: N2(g) + 3 H2(g) 2 NH3(g) ...
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Ammonia and hydrogen chloride react to form solid ammonium chloride, NH4Cl(s): NH3 (g) + HCl (g) -> NH4Cl(s). Two 2....
Ammonia and hydrogen chloride react to form solid ammonium chloride, NH4Cl(s): NH3 (g) + HCl (g) -> NH4Cl(s). Two 2.50 L flasks at 20.0°C are connected by a stopcock. One flask contains 5.80NH3(g) and the other contains 4.40 HCl(g). When the stopcock is opened, the gases react until one is completely consumed. A. Which gas will remain in the system after the reaction is complete? B. What will be the final pressure of the system after the reaction is complete?...
Predict the sign of the entropy change for each of the following processes: (a) I2(s) →...
Predict the sign of the entropy change for each of the following processes: (a) I2(s) → 2I(g) positive cannot predict negative (b) 2Zn(s) + O2(g) → 2ZnO(s) positive negative cannot predict (c) N2(g) + O2(g) → 2NO(g) cannot predict positive negative
Buckboard quem cumpretrom Icarus. Which one of the following reactions or processes has a negative entropy...
Buckboard quem cumpretrom Icarus. Which one of the following reactions or processes has a negative entropy change? A. BF3(g) + NH3(g) → F3BNH3(5) B. 2 503(g) - 2 SO2(g) + O2(g) C. 2NH4NO3(s) - 2 N2(g) + 4 H2O(g) + O2(g) D. 2 NH3(g) → N2(g) + 3 H2(g) E. H2011) H2O(g)
Which of the following processes have a ΔS > 0? A) Na2CO3(s) + H2O(g) + CO2(g) → 2 NaHCO3(s) B)CH4(g) + H2O(g) → CO(g...
Which of the following processes have a ΔS > 0? A) Na2CO3(s) + H2O(g) + CO2(g) → 2 NaHCO3(s) B)CH4(g) + H2O(g) → CO(g) + 3 H2(g) C)CH3OH(l) → CH3OH(s) D)N2(g) + 3 H2(g) → 2 NH3(g) E)All of the above processes have a DS > 0.
Consider the following reaction at 25 °C: 5 SO3(g) + 2 NH3(g) → 2 NO(g) +...
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7. Which of the following reactions would have a positive value f I. NH3(g) + HCl(g)...
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