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Author Question: Consider the reaction 2NO2(g) N2O4(g); H = 56.8 kJ and S = 175 J/K. In a container (at 298 K) ... (Read 179 times)

CORALGRILL2014

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Question 1

Consider the gas phase reaction NO +

O

2

NO

2

for which Δ

= –57.04 kJ and

K

= 1.48

10

6

at 25°C. 

CalculateΔat 25°C for the following reaction:

     2NO + O2

  2NO2

Reference: Ref 17-6


236 J/K
–147 J/K
–236 J/K
–265 J/K
265 J/K

Question 2

Consider the reaction 2NO2(g) N2O4(g); Δ = –56.8 kJ and Δ = –175 J/K. In a container (at 298 K) N2O4(g) and NO2(g) are mixed with initial partial pressures of 2.4 atm and 0.42 atm, respectively. Which of the following statements is correct?

Some N2O4(g) will decompose into NO2(g).
Some NO2(g) will dimerize to form N2O4(g).
The system is at equilibrium at these initial pressures.
The final total pressure must be known to answer this question.
None of these are correct.


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Marked as best answer by CORALGRILL2014 on Mar 21, 2021

ASDFGJLO

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CORALGRILL2014

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Reply 2 on: Mar 21, 2021
Thanks for the timely response, appreciate it


dreamfighter72

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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