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The capacity of a container is the volume
of liquid that can fit
inside the container.
For example, the capacity of a hot water tank is the volume of water that
can fit inside the tank. The capacity of a petrol tank is the volume of
petrol that can fit inside the tank.
The standard units often used for capacity are the litre (L) and
the millilitre (mL).
A container with an inner volume of 1 cm3 will hold 1 mL of
liquid. That is:
We also use the units called kilolitre (kL) and even megalitre
(ML).
Note:
Example 7
Express 4 L in mL.
Solution:
Example 8
Express 6500 mL in L.
Solution:
Example 9
Express 3.6 L in cm3.
Solution:
Example 10
Express 5.78 kL in L.
Solution:
Example 11
Express 5760 L in kL.
Solution:
Example 12
A diving pool contains 746 kilolitres of water. How many litres of water
does the pool contain?
Solution:
So, the pool contains 746 000 L of water.
Example 13
A reservoir can hold 49 760 megalitres of water. What is its
capacity in litres?
Solution:
So, the capacity of the reservoir is 49 760 000 000 L.
Example 14
Express 438 cm3 in litres.
Solution:
Key Terms
capacity, litre, millilitre,
kilolitre, megalitre
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