During a chemical reaction, which observation indicates that it is endothermic?
Answer and explanation
Correct answer: The container feels cold
An endothermic reaction absorbs heat from its surroundings, so the surroundings lose thermal energy and the reaction vessel may feel cooler. Thus option A is the appropriate observation. A hot vessel generally indicates an exothermic process that releases heat. A bright flame and burning food are also commonly associated with combustion, which is exothermic, not endothermic.
Frequently asked questions
What is the correct answer to this question?
The container feels cold
Why is this the correct answer?
An endothermic reaction absorbs heat from its surroundings, so the surroundings lose thermal energy and the reaction vessel may feel cooler. Thus option A is the appropriate observation. A hot vessel generally indicates an exothermic process that releases heat. A bright flame and burning food are also commonly associated with combustion, which is exothermic, not endothermic.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
