General Science - Physics (Basics)
Which of the following changes involves energy release and formation of new substances?
Which of the following changes involves energy release and formation of new substances?
medium Q14 of 15
Step-by-Step Solution
Step 1: Understand energy and substance formation
Chemical changes often release or absorb energy and form new substances.Step 2: Analyze options
Burning of coal releases heat and light energy and produces new substances like carbon dioxide and ash. Others are physical changes without new substances.Final Answer:
Burning of coal → Option BQuick Check:
Energy release and new substances = Burning of coal ✅
Quick Trick: Energy release usually means chemical change.
Common Mistakes:
- Mistaking boiling or condensation as chemical changes.
Master "Physics (Basics)" in General Science
Start learning the concept with an interactive lesson.
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore General Science Quizzes