Engineering, 24.01.2020 21:31 nataliaguadaluoupa25
Two substances, a and b, initially at different temperatures, come into contact and reach thermal equilibrium. the mass of substance a is 6.01 g and its initial temperature is 20.0 degrees celsius. the mass of substance b is 25.6 g and its initial temperature is 52.2 degrees celsius. the final temperature of both substances at thermal equilibrium is 46.1 degrees celsius. if the specific heat capacity of substance b is 1.17 j/g degrees celsius, what is the specific heat capacity of substance a
Answers: 3
Engineering, 03.07.2019 14:10
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
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Engineering, 03.07.2019 14:10
The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite
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Engineering, 04.07.2019 18:10
Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?
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Engineering, 04.07.2019 18:10
Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?
Answers: 3
Two substances, a and b, initially at different temperatures, come into contact and reach thermal eq...
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