Stion 13 of 20 : select the best answer for the question. 13. if a certain mass of mercury has a volume of 0.002 m3 at a temperature of 20°c, what will be the volume at 50°c? a. 0.002021624 m3 b. 0.004021624 m3 c. 0.000010812 m3 d. 0.002010812 m3

Answer : The correct option is, (A)

Solution : Given,

Volume of mercury at temperature =

As we know that the mercury is a liquid substance. So, we have to apply the volume of expansion of the liquid.

Formula used for the volume expansion of liquid :

or,

where,

= volume of liquid at temperature

= volume of liquid at temperature

= volume of liquid at temperature

= volume expansion coefficient of mercury at is 0.00018 per centigrade    (Standard value)

Now put all the given values in the above formula, we get the volume of mercury at .

Therefore, the volume of mercury at is,

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explanation:

hypothesising or postulating