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A guy at the sonics carrying food out to the cosumter waiter handed me a 258...

A guy at the sonics carrying food out to the cosumter waiter handed me a 258 g of sweet tea at a temperature of 25oC. Then she added some ice at a temperature of -12oC from the ice-machine. The final temperature after the all ice had melted is 4oC. What is the mass of ice the waiter had added to the sweet tea? (Assume sweet tea is just water)

Use: Specific Heat of water 4186 J/kg.oC, Latent Heat of fusion of ice 3.33x105J/kg, specific Heat of water ice 2090 J/kg.oC

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Answer #1

= m₂ tin mass of ice mass of sweat tea= mir 2589= 0.258kg initial temperature of swead tea 25°C i bitial temperature of ice =

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