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Heat Capacity at Constant Pressure

660 J heat en...

Question

$660 J$ heat energy is supplied to a solid of mass $275 g$ . When its temperature rises by $1^{o} C$ , calculate specific heat capacity of the solid :

1.2 J / g^{o} C

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4.8 J / g^{o} C

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2.4 J / g^{o} C

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9.6 J / g^{o} C

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Solution

The correct option is B $2.4 J / g^{o} C$
Temperature rise = $1^{o} C$
let $c$ be the specific heat
$Q = m c Δ T$
$Q = 660 = 275 \times c \times 1$
$c = 2.4 J g^{-} 1^{o} C^{- 1}$

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