A small metal bar, whose initial temperature was 10° C, is dropped into a large container...
A small metal bar, whose initial temperature was 10° C, is
dropped into a large container of boiling water. How long will it
take the bar to reach 70° C if it is known that its temperature
increases 2° during the first second? (The boiling temperature for
water is 100° C. Round your answer to one decimal place.)
sec
How long will it take the bar to reach 99° C? (Round your answer to
one decimal place.)
sec
Homework Answers
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A small metal bar, whose initial temperature was 10° C, is
dropped into a large container...
A small metal bar, whose initial temperature was 20° C, is dropped into a large container...
A small metal bar, whose initial temperature was 20° C, is dropped into a large container of boiling water. How long will it take the bar to reach 70° C if it is known that its temperature increases 2º during the first second? (The boiling temperature for water is 100° C. Round your answer to one decimal place.) sec How long will it take the bar to reach 98° C? (Round your answer to one decimal place.) sec Need Help?...
A small metal bar, whose initial temperature was 30°C, is dropped into a large container of...
A small metal bar, whose initial temperature was 30°C, is dropped into a large container of boiling water. Its temperature was 33° after 1 second. How long will it take the bar to reach 90°C?
A small metal bar, whose initial temperature was 20° C, is dropped into a large container of bowling water. How long will it take the bar to reach 90°C if it is known that its temperature increase to 22°C in 1 second?
A small metal bar, whose initial temperature was 20° C, is dropped into a large container of bowling water. How long will it take the bar to reach 90°C if it is known that its temperature increase to 22°C in 1 second?
Q4. A metal bar whose temperature is 20°C is placed in boiling water. How long does...
Q4. A metal bar whose temperature is 20°C is placed in boiling water. How long does it take to heat the bar to practically 100°C, say, to 99.9°C, if the temperature of the bar after 1 min of heating is 51.5°C"?
2. (4 pts) A small metal bar, whosetemperature was 20 C at 2 pm was dropped...
2. (4 pts) A small metal bar, whosetemperature was 20 C at 2 pm was dropped into a container of boiling water. After 10 minutes its temperature rose to 25 C. The metal bar was left in the water until 2:20pm. (a) What was its temperature when it was taken out of the water at 2:20pm? (b) Suppose the bar was then put in in a refrigerator which had a fixed temperature of OC at 2:20pm. At 2:30pm, the temperature...
Two large containers A and B of the same size are filled with different fluids. The...
Two large containers A and B of the same size are filled with different fluids. The fluids in containers A and B are maintained at 0° C and 100° C, respectively. A small metal bar, whose initial temperature is 100° C, is lowered into container A. After 1 minute the temperature of the bar is 90° C. After 2 minutes (since being lowered into container A) the bar is removed and instantly transferred into the other container. After 1 minute...
Two large containers A and B of the same size are filled with different fluids. The...
Two large containers A and B of the same size are filled with different fluids. The fluids in containers A and B are maintained at 0C and 100C, respectively. A small metal bar, whose initial temperature is 100C, is lowered into container A. After 1 minute the temperature of the bar is 90C. After 2 minutes (since being lowered into container A) the bar is removed and instantly transferred to the other container. After 1 minute in container B, the...
A 1.8 kg piece of a metal initially at a temperature of 180o C is dropped...
A 1.8 kg piece of a metal initially at a temperature of 180o C is dropped into the water with mass of 14 kg. The water is in a container made of the same metal with mass 3.6 kg. The initial temperature of the water and container is 16.0o C, and the final temperature of the entire system (including the container) is 18.0o C. Calculate the specific heat of the metal. * Heat of fusion of water: 3.33
7. A piece of metal weighing 90.3 grams and at an initial temperature of 99.0°C was...
7. A piece of metal weighing 90.3 grams and at an initial temperature of 99.0°C was dropped into a beaker containing 78.2 g of water whose initial temperature is 21.0°C. The final temperature of the metal and water was 29.0°C. Calculate the specific heat of metal. (Specific heat of water = 4.184 J/g.K) A. 0.372 B. 0.123 C. 0.886 D. 0.534 E. 0.414
A A 2.3 m long metal bar is heated so that temperature increase by 56°C. The...
A A 2.3 m long metal bar is heated so that temperature increase by 56°C. The bar increases in length by 1.67 mm. The coefficient of linear expansion of the bar is: A 11 x 100 B. 15 x 10°C C. 13 x 10°C D. 22 x 10°C E. None of the above. B There are 5.00x10 atoms/m' in a container of argon gas (atomic mass number 40). The pressure in the container when the atoms have a rms speed...
A small metal bar, whose initial temperature was 20° C, is dropped into a large container of boiling water. How long will it take the bar to reach 70° C if it is known that its temperature increases 2º during the first second? (The boiling temperature for water is 100° C. Round your answer to one decimal place.) sec How long will it take the bar to reach 98° C? (Round your answer to one decimal place.) sec Need Help?...
A small metal bar, whose initial temperature was 30°C, is dropped into a large container of boiling water. Its temperature was 33° after 1 second. How long will it take the bar to reach 90°C?
Q4. A metal bar whose temperature is 20°C is placed in boiling water. How long does it take to heat the bar to practically 100°C, say, to 99.9°C, if the temperature of the bar after 1 min of heating is 51.5°C"?
2. (4 pts) A small metal bar, whosetemperature was 20 C at 2 pm was dropped into a container of boiling water. After 10 minutes its temperature rose to 25 C. The metal bar was left in the water until 2:20pm. (a) What was its temperature when it was taken out of the water at 2:20pm? (b) Suppose the bar was then put in in a refrigerator which had a fixed temperature of OC at 2:20pm. At 2:30pm, the temperature...
7. A piece of metal weighing 90.3 grams and at an initial temperature of 99.0°C was dropped into a beaker containing 78.2 g of water whose initial temperature is 21.0°C. The final temperature of the metal and water was 29.0°C. Calculate the specific heat of metal. (Specific heat of water = 4.184 J/g.K) A. 0.372 B. 0.123 C. 0.886 D. 0.534 E. 0.414
A A 2.3 m long metal bar is heated so that temperature increase by 56°C. The bar increases in length by 1.67 mm. The coefficient of linear expansion of the bar is: A 11 x 100 B. 15 x 10°C C. 13 x 10°C D. 22 x 10°C E. None of the above. B There are 5.00x10 atoms/m' in a container of argon gas (atomic mass number 40). The pressure in the container when the atoms have a rms speed...
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