1. A 1200 g aluminum block is heated at 235 °C and placed in a partially filled container with 3.5 kg of water at 20 °C. What will the final temperature be?
2. Determine the specific heat of a metallic sample of 100 g which requires 1557.2 J to raise its temperature from 50 to 90 ° C. Also, indicate what material the sample is made up of ___________
3. 800 g of lead, are at a temperature of 15 °C. What will its final temperature be if 12,761J were supplied?
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