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Standard X

Physics

Specific Heat Capacity

40 g of water...

Question

40 g of water at 60°C is poured into a vessel containing 50 g of water at 20°C. The final temperature recorded is 30°C. The thermal capacity of the vessel is: [Take specific heat capacity of water as 4.2J g^{-1 o}C^-1]

294 J/^oC

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500 J/^oC

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300 J/^oC

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4200 J/^oC

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Solution

The correct option is A
294 J/^oC

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40 g of water at 60 $^{0} C$ is poured into a vessel containing 50 g of water at 20 $^{0} C$ . The final temperature recorded is 30 $^{0} C$ . Calculate the thermal capacity of the vessel. (Take specific heat capacity of water as 4.2 $J g {- 1}^{0} C^{- 1}$ ).

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A piece of ice of mass 40 g is dropped into 200 g of water at 50°C. Calculate the final temperature of water after all the ice has melted. Specific heat capacity of water = 4200 J/kg^oC , Specific latent heat of fusion of ice = 336 x 10³ J/kg.

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40 g of water at 60°C is poured into a vessel containing 50 g of water at 20°C. The final temperature recorded is 30°C. The thermal capacity of the vessel is: [Take specific heat capacity of water as 4.2J g-1 oC-1]

The correct option is A 294 J/oC

40 g of water at 60°C is poured into a vessel containing 50 g of water at 20°C. The final temperature recorded is 30°C. The thermal capacity of the vessel is: [Take specific heat capacity of water as 4.2J g^{-1 o}C^-1]

The correct option is A
294 J/^oC