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madam [21]
3 years ago
11

As a chemical reaction occurs, the thermometer in the container records a decrease in temperature. What is true of the reaction?

Chemistry
2 answers:
Zinaida [17]3 years ago
6 0
Hello!

As a chemical reaction occurs and the thermometer in the container records a decrease in temperature, the statement that is true about the reaction is: <span>The reaction is endothermic because heat was taken in by the reaction.

Endothermic reactions are those that require energy in the form of heat to be completed. Technically, in these reactions, the enthalpy of the products is higher than the enthalpy of the products. The requirement of energy causes the temperature to decrease. A general expression for an endothermic reaction can be written in the following way:

A + 
</span>Δ → B (Where Δ means heat)

Have a nice day!
8_murik_8 [283]3 years ago
3 0

The reaction is endothermic. Hope this helps!

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In this case, according to the given information, it turns out possible to set up the following energy equation for both objects 1 and 2:

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Now, solve for the final temperature, as follows:

T_F=\frac{m_1C_1T_1+m_2C_2T_2}{m_1C_1+m_2C_2}

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Yet, the values do not seem to have been given correctly in the problem, so it'll be convenient for you to recheck them.

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