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Standard X

Physics

Calorimeter

200 g of a so...

Question

$200 g$ of a solid ball at $20^{o} C$ is dropped in an equal amount of water at $80^{o} C$ . The resulting temperature is $60^{o} C$ . This means that specific heat of solid is :

One fourth of water

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One half of water

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Twice of water

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Four times of water

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Solution

The correct option is B One half of water
According to principle of calorimetry,
$H e a t l o s t = H e a t g a i n e d$
$200 \times S \times (40) = 200 \times S_{W} \times (+ 20)$
$S = \frac{1}{2} S_{W}$
$∴$ Specific heat of solid ball is half the specific heat of water.

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200 g of a solid ball at 20oC is dropped in an equal amount of water at 80oC. The resulting temperature is 60oC. This means that specific heat of solid is :

The correct option is B One half of waterAccording to principle of calorimetry,Heatlost=Heatgained200×S×(40)=200×SW×(+20) S=12SW∴ Specific heat of solid ball is half the specific heat of water.

$200 g$ of a solid ball at $20^{o} C$ is dropped in an equal amount of water at $80^{o} C$ . The resulting temperature is $60^{o} C$ . This means that specific heat of solid is :

The correct option is B One half of water
According to principle of calorimetry,
$H e a t l o s t = H e a t g a i n e d$
$200 \times S \times (40) = 200 \times S_{W} \times (+ 20)$
$S = \frac{1}{2} S_{W}$
$∴$ Specific heat of solid ball is half the specific heat of water.