A furnace takes 10 minutes to heat up to reach 1000 °C.Pure zinc is placed in the furnace.After 6 minutes will the pure zinc be solid or a molten liquid?Solid because at 6 minutes the temperature in the furnace is less than the melting point of zinc.Molten liquid because at 6 minutes the temperature in the furnace is greater than the melting point of zinc.Molten liquid because at 6 minutes the temperature in the furnace is less than the melting point of zinc.Solid because at 6 minutes the temperature in the furnace is greater than the melting point of zinc.I DON'T KNOWSUBMIT ANSWER
Question
A furnace takes 10 minutes to heat up to reach 1000 °C.Pure zinc is placed in the furnace.After 6 minutes will the pure zinc be solid or a molten liquid?Solid because at 6 minutes the temperature in the furnace is less than the melting point of zinc.Molten liquid because at 6 minutes the temperature in the furnace is greater than the melting point of zinc.Molten liquid because at 6 minutes the temperature in the furnace is less than the melting point of zinc.Solid because at 6 minutes the temperature in the furnace is greater than the melting point of zinc.I DON'T KNOWSUBMIT ANSWER
Solution
The answer to this question depends on the melting point of zinc. The melting point of zinc is 419.53 °C. If the furnace heats up linearly, then in 6 minutes it would be at 600 °C (60% of the 10 minutes it takes to reach 1000 °C). This is greater than the melting point of zinc, so the zinc would be a molten liquid. Therefore, the correct answer is: "Molten liquid because at 6 minutes the temperature in the furnace is greater than the melting point of zinc."
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