Question

how is heating of wood different from heating of dry ice

Answer 1

burning of wood is a chemical change as a new substance that is ash is formed and co2 is released. while heating of ice is a physical change it changes its state only from solid to liquid and than to gas

Answer 2

Heating of wood:

• Burning of wood is a chemical change.
• When wood is burnt, the new product obtained is ash which cannot be changed back to wood.
• When wood burns, carbon dioxide is released.

Heating of dry ice:

• The burning of dry ice is a physical change.
• When dry ice is heated or burnt, it melts down from its solid to a liquid state.
• The change is a physical one because no new product or substance is formed in burning of dry ice.