A 2.3 m long metal bar is heated so that temperature increase by 56℃. The bar increases in length by 1.67 mm. The coefficient of linear expansion of the bar is;
A. 15 x 10 -5 ℃ -1
B. 13 x 10 -5 ℃ -1
C. 11 x 10 -5 ℃ -1
D. 22 x 10 -5 ℃ -1
E. None of the above.
option E is correct
A 2.3 m long metal bar is heated so that temperature increase by 56℃. The bar...
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 1.00 kg copper bar is heated to atmospheric pressure so that its temperature increases from 20 ° C to 50 ° c. The density of copper is 8.92 x 103 kg and the coefficient of volumetric expansion is 4.5 x 10-5 (C0) -1 Determine the change in volume of the copper bar. (Remember that p = m / V)
4. A metal wire that is 3 m long at 20 °C is found to increase in length by 1,5 cm when heated to 520 °C. Determine the coefficient of linear expansion of the metal. (3)
A 2.0 kg bar of copper is heated at atmospheric pressure so that its temperature increases from 20°C to 50°C. (a) What is the work done on the copper bar by the surrounding atmosphere? SOLUTION Conceptualize This example involves a solid, whereas the preceding two examples involved liquids and gases. For a solid, the change in volume due to thermal expansion is very small. Categorize Because the expanslon takes place at constant atmospheric pressure, we categorize the process as isobaric...
In the practice of linear expansion metal rod initially had a length of 600mm at a temperature of 21 ° C. was heated to 100 ° C and a length of 0610 mm therefore dilated, its coefficient of thermal linear expansion is: 12.8 X 10.6 mm / mm oC 10.8 X 10.6 mm / mm ° C-1 14.8 X 10.6 mm / mm ° C-1 16.8 X 10.6 mm / MMOC-1
A metal rod 25.0000 cm long at 25.0 °C is heated to 125 °C. The length of the rod is then measured to be 25.0025 cm. What is the coefficient of linear expansion of the metal? 0.0001 1/C O 0.000001 1/C 0.0000001 1/C 0.00001 1/C
Question 7 (1 point) A metal rod 40.0000-cm long at 33 °C is heated to 60 °C. The length of the rod is then measured to be 40.125 cm. The coefficient of linear expansion of the metal is °C-1. (Round your answer to six decimal places) Your Answer: Answer
A metal bar of length 6.33 m and linear expansion coefficient of 2.74x105 /°C has a crack half-way along its length as shown in figure (a). After a 45.0-°C temperature rise, the metal buckles upward, having a height h above its original position as shown in figure (b). Find h Submit AnswerTries 0/14
A metal rod has a length of 5 m and undergoes a temperature change of 50 degree celsius. If the coefficient of expansion is 20 X 10^-6/ degree celsius, what is the change in length of the rod? A. 500 mm B. 5 mm C. 6.3 ft
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?