when an exothermic reaction is carried out in a coffee-cup calorimeter, what statement is correct? a. qwater is negative. b. the enthalpy of the products is lower than that of the reactants. c. the temperature of the water decreases. d. the enthalpy change for the reaction is positive. e. the reaction absorbs heat from the water.

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reachhalo1042 reachhalo1042

01-12-2022
Chemistry

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when an exothermic reaction is carried out in a coffee-cup calorimeter, what statement is correct? a. qwater is negative. b. the enthalpy of the products is lower than that of the reactants. c. the temperature of the water decreases. d. the enthalpy change for the reaction is positive. e. the reaction absorbs heat from the water.

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chrvynd chrvynd · Answer 1 · 2022-12-06T11:40:23+01:00

The correct statement about an exothermic reaction carried out in a coffee-cup calorimeter is that the enthalpy of the products is lower than that of the reactants. Therefore, the correct answer is option B.

Exothermic reaction is a term that means the heat will be released during the reaction, making the environment warmer. In a coffee-cup calorimeter, the heat increases the temperature of coffee contents, which includes water.

In an exothermic reaction, the enthalpy of the product will be lower than that of reactants (B is correct).

During the reaction, heat is released so the water temperature will increase (C and E are incorrect).

Since the enthalpy of the product is lower, the enthalpy change will be negative (D is incorrect).

Learn more about exothermic reaction at https://brainly.com/question/2924714

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