The heat released by a copper ball of mass 1 kg when cooled from 100°C to 90°C is 8.4 kJ. Calculate the specific heat capacity of copper.

84 J/kg°C

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840 J/g°C

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840 kJ/kg°C

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840 J/kg°C

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Solution

The correct option is D
840 J/kg°C

Q = mcθ

8.4 × 1000 = 1 × c × 10

c = 840 J/kg°C

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Similar questions

A calorimeter contains 5 kg of water at 30°C. A metal of mass 4 kg at 100^oC is added to the calorimeter. The final temperature is recorded as 70^oC. Find the specific heat capacity of the metal. Given: Specific heat capacity of water 4200 J kg^–1°C^–1.

Q. Find the heat lost by a copper cube of mass

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What amount of heat is required by $50 g$ of copper to increase its temperature by $10^{\circ} C$ ? specific heat of copper = $420 J / k g^{\circ} C)$

$50 g$ of copper is heated to increase its temperature by $10^{\circ} C$ . If the same quantity of heat is given to $10 g$ of water, the rise in its temperature is (specific heat of copper = $420 J / k g /^{\circ} C$ , specific heat of water = $4200 J / k g /^{\circ} C$ )

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The heat released by a copper ball of mass 1 kg when cooled from 100°C to 90°C is 8.4 kJ. Calculate the specific heat capacity of copper.

The correct option is D 840 J/kg°CQ = mcθ 8.4 × 1000 = 1 × c × 10 c = 840 J/kg°C

The correct option is D
840 J/kg°C

Q = mcθ

8.4 × 1000 = 1 × c × 10

c = 840 J/kg°C