explain why decomposetion of sugar on heating is an irreversible chanfe
Answers
Answer:
Heating of sugar is an Irreversible change because when sugar is heated strongly it breaks down or decomposes mostly into carbon( a black solid) and water vapour.New materials are formed and the sugar cannot be changed back.
Answer:
Explanation:
. First of all we should recall what an irreversible change is. A change is called irreversible if it cannot be changed back again. In an irreversible change, new materials are always formed. Sometimes these new materials are useful to us. An irreversible change can be caused by:
• Heating
• Mixing
• Burning
• Dissolving
• Evaporating
Now let’s reflect on how and on which lines is the decomposition of sugar an irreversible change:
• Non-reversible
• It was heated
• Permanent change
• Colour change happens
• New product
Heating sugar melts it from solid to liquid state and it is a physical change. This change is reversible and does not involve formation of any new substances. ... The change is irreversible and is thus a chemical change