Using this reversible reaction, answer the following:
2 answers:
<span>-Products formed by the forward reaction may react with each other to regenerate the reactants. -When reactants are mixed, they will begin to react at a forward reaction rate particular to that chemical reaction. - As reactants are depleted and products are formed, however, the rate of the forward reaction begins to slow, and the rate of the reverse reaction begins to increase.</span>
<h2>Question 1.</h2><h3>Answer:</h3>
The concentration of [N2O4] will decrease.
<h3>Explanation:</h3>
As the reverse reaction which is the formation of N2O4 is an exothermic reaction and the formation of NO2 is an endothermic reaction. Hence heating will favor the forward reaction and stops the reverse reaction. N2O4 --> 2NO2 So the concentration of N2O4 decreases. <h2>Question: 2.</h2><h3>Answer:</h3>
The formation of the products is favored by the addition of heat.
<h3>Explanation:</h3>
As the reverse reaction which is the formation of N2O4 is an exothermic reaction and the formation of NO2 is an endothermic reaction. So the addition of heat will favor endothermic reaction. Hence the formation of NO2 will be favored which is a product. <h2>Question no.4:</h2><h3>Answer:</h3>
The reverse reaction is an exothermic reaction.
N2O4 <-- 2NO2.
<h3>Explanation:</h3>
N2O4 which is a reactant in this reaction is colorless compound. Its breakdown absorbs energy and its formation release energy in form of heat. So the reverse reaction which releases energy is an exothermic reaction. <h2>Question no. 4</h2><h3>Answer:</h3>
The correct option is D which is N2O4 <--> 2NO2, HR = -14 kcal.
<h3>Explanation:</h3>
Enthalpy is the change in energy in reactants and products. It is actually the difference in energies of products and reactant. As the enthalpy change from left to right, it means reactants have internal energy 14 kcal high than products and it will be released. And in option D which is shown as HR = -14 kcal.
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where,
n = number of moles
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The correct answer is "B. Make a Hypothesis".