219k views
0 votes
Copper is added to a solution of nitric acid. The solution becomes hot and changes from colorless to dark blue. What is the best explanation for the change in temperature?

User Aldert
by
7.5k points

2 Answers

5 votes

Answer:

The chemical reaction between the copper and the nitric acid produces heat.

Step-by-step explanation:

User KAnGeL
by
7.7k points
2 votes

When copper is added to a solution of nitric acid, their chemical reaction produces heat.

Step-by-step explanation:

During the reaction between copper an d nitric acid, the copper metal is oxidised to form copper(ii) ion, by nitrate ion. Then this is converted into notrogen oxide gas. As, a result of this conversion, there is a binding of copper(ii) ion with water molecules of number 6. As a result of this, the copper metal will turn into a solution which is blue and a gas of brown color is obtained.

Thus when copper is added to nitric aci, there is a change in the temperature. The chemical reaction that takes place between Copper and Nitric acid solution generates heat. This process is an exotermic.

User Christian Callau
by
7.9k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.