Allied solutions

Allied solutions

Grade 7

Physical and Chemical Changes | Exercise

Question 13

Q12) Explain in brief the involvement of energy in - physical change and chemical changes.

Solution:

In physical changes, energy is used to change the state of matter.

In chemical changes, energy is released when there is decomposition of a substance and absorbed while forming a new substance.

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your chemistry exam ?

Learn from an expert tutor.

Book a free class now
subject-cta

Question 13

Q12) Explain in brief the involvement of energy in - physical change and chemical changes.

Solution:

In physical changes, energy is used to change the state of matter.

In chemical changes, energy is released when there is decomposition of a substance and absorbed while forming a new substance.

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your chemistry exam ?

Learn from an expert tutor.

Book a free class now
subject-cta
linkedin instgram facebook youtube
2020 © Quality Tutorials Pvt Ltd All rights reserved
linkedin instgram facebook youtube