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Which of the changes A, B or C is endothermic? Explain your answer.
Chemistry
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Question 1:
c)
Identify the endothermic change.
Change A (liquid to gas) is an endothermic process.
Explain why change A is endothermic.
Endothermic processes absorb heat energy from the surroundings. The transition from liquid to gas requires energy input to overcome the intermolecular forces holding the liquid molecules together, allowing them to move freely as a gas.
- Change A is endothermic.
Question 2:
a)
- Apparatus: Bunsen burner
b)
- Apparatus: Volumetric flask
c)
- Apparatus: Liebig condenser
d)
- Apparatus: Desiccator
e)
- Apparatus: Pipette
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