In a closed container, nitrogen gas and hydrogen gas react to produce ammonia. n2(g) + 3h2(g) < > 2nh3(g) which statement describes the graph of concentration versus time for ammonia as the system approaches dynamic equilibrium? it curves down and levels out. it curves up and levels out. it steadily decreases to zero. it steadily increases to a maximum.

Answerit curves up and levels out.explanationwe assume that the container contains absolutely no ammonia to begin with as it states that "nitrogen gas and hydrogen gas" react to "produce ammonia."at dynamic equilibrium, the product and reactant concentrations are equal.this means that, starting from a concentration of zero, [nh₃] must curve "up" from zero and then level out to a constant concentration.

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