tewilliams1
21.12.2019 •
Chemistry
Dinitrogen tetraoxide and nitrogen dioxide are two gases that exist in equilibrium at a range of temperatures. no2 is a reddish brown gas while n2o4 is at high temperature the red color is strong. at low temperature the gas has less color. we represent the equilibrium as: 2 no2(g) doublearrow.gifn2o4(g) we can conclude that: 1. this reaction is: a. exothermicb. endothermicc. neutrald. more information is needed to answer this question.2. when the temperature is decreased the equilibrium constant, k: a. increasesb. decreasesc. remains the samed. more information is needed to answer this question.3. when the temperature is decreased the equilibrium concentration of no2: a. increasesb. decreasesc. remains the samed. more information is needed to answer this question.
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Ответ:
1-C
2-A
3-B
Explanation:
K=[N204]/[NO2]
In the first question the reaction is at equilibrium. When the temperature is decreased, more N2O4 if formed and K increases. When the temperature is increased, more NO2 is formed and K decreases.
Ответ: