When you burn a piece of wood different changes take place analyse the

1.	When you burn a piece of wood different changes take place analyse the following. Predict possible changes and list them all. a) Are there any physical changes among them? b) How many forms of energy are released in the change? c) What chemical changes do you notice? d) Explain briefly why these occur.
Answer» a) No physical changes is observed. b) The energy is released in the form of heat sound and light energy. c) When a piece of wood is burnt a new material is formed (ash). We also notice change in shape and size of new materials (powder). This type of change which leads to form new substance is called chemical changes. d) Wood turns into carbon dioxide and ash Carbon (Wood) + Oxygen (Air) → CO₂ + Ash

When you burn a piece of wood different changes take place analyse the following. Predict possible changes and list them all. a) Are there any physical changes among them? b) How many forms of energy are released in the change? c) What chemical changes do you notice? d) Explain briefly why these occur.

Answer»

a) No physical changes is observed.

b) The energy is released in the form of heat sound and light energy.

c) When a piece of wood is burnt a new material is formed (ash). We also notice change in shape and size of new materials (powder). This type of change which leads to form new substance is called chemical changes.

d) Wood turns into carbon dioxide and ash

Carbon (Wood) + Oxygen (Air) → CO₂ + Ash

Discussion

No Comment Found

Related InterviewSolutions

What were the two main occupations of the Rig Vedic Aryans?
Name the two political institutions which exercised check on the powers of the King in the Rig Vedic period.
What w’as the position of women in the Rig Vedic age ?
Describe the social life of the Rig Vedic Aryans with reference to the following: (a) The Family Structure (b) Position of Women (c) Varna System
With reference to the following explain the main features of the Rig Vedic Economy: (a) Agriculture (b) Domestication of Animals (c) Trade Transactions, Crafts and Transportation
Mention any two archaeological sources to reconstruct the later Vedic Age.
Mention any two of the Ashrams in the life of a man in Aryan society.
What information do we gather from the later Vedic literature in respect of: (a) Spread of Vedic Civilization to many New Regions. (b) Role of Iron in later Vedic Economy.
Mention briefly the rituals and sacrifices of the later Vedic Aryans?
What is the message of the Bhagavad Gita?

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment