Question

if a particular process is endothermic, the reverse process must be a (an):

• isothermal process.
• exothermic process.
• chemical change.
• endothermic process.
• none of the above

Explanation:

To solve this, we recall the definitions of endothermic and exothermic processes. An endothermic process absorbs heat from the surroundings. The reverse process would release heat to the surroundings, which is the definition of an exothermic process. An isothermal process maintains constant temperature, a chemical change is about substance transformation (not directly related to heat direction of reverse), and the reverse of endothermic can't be endothermic. So the reverse of an endothermic process is exothermic.

Answer:

B. exothermic process.