A 0750-Kg Iron Bar Is Taken from a Forge at 900

question 11

Multiple Choice

A 0.750-kg iron bar is taken from a forge at 900 ^$\circ$ C and dropped into 14.00 kg of water at 20.0 ^$\circ$ C.Assuming that no energy is lost by heat to the surroundings as the water/iron reaches their final temperature,determine the total entropy change of the water.Assume that specific heat of iron is 448 J/(kg.K) .

• A)-444 J/K
• B)-614 J/K
• C)-756 J/K
• D)-534J/K
• E)444 J/K

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