Chemistry
Grade-8
Easy
Question
Which of the following statement is incorrect?
- Making a hot ice is the exothermic reaction which is used to make chemical hand warmer.
- The carbon dioxide can be obtained when carbon burns in oxygen.
- The process of snow formation is an endothermic reaction
- In the exothermic reaction the energy of product is always less than the energy of reactant molecule.
Hint:
It feels warmer in areas with snow as there is an exothermic reaction.
The correct answer is: The process of snow formation is an endothermic reaction
- Snow is precipitation in the form of crystallized ice from water vapor in the atmosphere that falls from clouds in large clumps of bright white flakes.
- The process of forming snowflakes (solid water) is an exothermic reaction. That is, heat is released into the environment. That's why the air feels warmer when it snows.
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