QUESTION 1 Suppose that a hot chocolate is frequently served at temperatures 70°C. After 10 minutes the temperatures had
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QUESTION 1 Suppose that a hot chocolate is frequently served at temperatures 70°C. After 10 minutes the temperatures had
QUESTION 1 Suppose that a hot chocolate is frequently served at temperatures 70°C. After 10 minutes the temperatures had decreased to 50°C. The room temperatures is fixed at 18°C, how much longer would it take for the hot chocolate to cool to 30°C. (7 marks)