Question

2. A wrist-watch was purchased for 2000 and sold for 1800. Find loss and loss per cent.
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Answer 1

Answer:

loss = 200

loss percentage = 20%

Step-by-step explanation:

cost in which watch is purchased = 2000

cost in which watch is sold = 1800

loss = 2000-1800 = 200

loss percentage = 20x100 = 2000

2000÷200 = 20%

Answer 2

Answer:

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The latent heat of fusion is the enthalpy change of any amount of substance when it melts. When the heat of fusion is referenced to a unit of mass, it is usually called the specific heat of fusion, while the molar heat of fusion refers to the enthalpy change per amount of substance in moles.

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