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Molar and Specific Heat Capacity

A scientist w...

Question

A scientist wants to raise the temperature of 0.1 Kg sample of glass from $- 45^{0} C$ to $15^{0} C$ . How much heat energy is required to raise the temperature? (SHC of glass $8 J / K g /^{o} C)$

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Solution

Required heat $= m S △ T = 0.1 \times 8 \times (15 - (- 45)) = 0.1 \times 8 \times 60 = 48 J$

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