A substance in a beaker has a temperature of 22 degrees Celsius. At 1:00,you begin to heat it.after 14 minutes,it’s temperature reaches 48 degrees Celsius, and you stop heating it. By 2:03,it has cooled back down to 22 degrees Celsius. How long did it take to cool?
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The correct answer is 49 minutes
Explanation:
- The substance started getting heat at 1:00
- At 1:14, It got heated upto 48 degree Celsius, because it took 14 minutes
- At 1:14 , the heat was stopped and it was left for cooling.
- At 2:03 , which is 49 minutes from 1:14, it was cooled back to 22 degree Celsius
- Hence, it took 49 degree Celsius to cool down
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