Chemistry Practice Problems Endothermic & Exothermic Reactions Practice Problems Solution: Are the following processes exothermic or endother...

🤓 Based on our data, we think this question is relevant for Professor Gulacar's class at UCD.

Solution: Are the following processes exothermic or endothermic?a. When solid KBr is dissolved in water, the solution gets colder.

Problem

Are the following processes exothermic or endothermic?

a. When solid KBr is dissolved in water, the solution gets colder.

Solution

Recall: An endothermic reaction absorbs heat from the surroundings. The change in enthalpy for endothermic reactions is positive. Since an endothermic reaction absorbs heat from the surroundings, the temperature of the surrounding decreases.

On the other hand, an exothermic reaction releases heat to the surrounding, and the change in enthalpy is negative. Since an exothermic reaction releases heat from the surroundings, the temperature of the surrounding increases.

Solution BlurView Complete Written Solution

Additional Practice Problems

Endothermic & Exothermic Reactions

Endothermic & Exothermic Reactions

Q. Are the following processes exothermic or endothermic?a. the combustion of gasoline in a car engine

Solved • Wed Oct 17 2018 16:15:19 GMT-0400 (EDT)

Endothermic & Exothermic Reactions

Q. Are the following processes exothermic or endothermic?d. F2 (g) → 2F (g)

Solved • Wed Oct 17 2018 16:15:05 GMT-0400 (EDT)

Endothermic & Exothermic Reactions

Q. Are the following processes exothermic or endothermic?b. Natural gas (CH4) is burned in a furnace.

Solved • Wed Oct 17 2018 16:07:17 GMT-0400 (EDT)