A copper block with an initial temperature of 10oC is dropped into 554g of water initially at 76oC, and they reach an equilibrium temperature of 62oC. Determine the mass of the copper block. Round your answer to the nearest whole number.
My teacher gave us practice questions to answer and go over tomorrow at school. We need them to study. I have 3 questions that I can't do, they're too hard for me. Here they are:
1: A copper block with an initial temperature of 10oC is dropped into 554g of water initially at 76oC, and they reach an equilibrium temperature of 62oC. Determine the mass of the copper block. Round your answer to the nearest whole number.
2:You drop 358 grams of iron at an initial temperature of 87 oC into 628 grams of 4 oC water and wait for them to achieve thermal equilibrium. What is the final temperature of the water? Round your answer to the nearest whole number.
3: How many joules of heat does it take to melt 128 grams of ice that has an initial temperature of -18 oC? (Hf=333 J/g) Round your answer to the nearest whole number.
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