Calculate the energy stored in 1000 cm3 of gas at 80 MN/m2 at 290 K using STP as the datum

You oversee cooking a 30-lb turkey that is initially at 20 ̊C by exposing it to the 200 ̊C environment ofan oven with a convective heat transfer coefficient of 20 Wm-2 K-1 . Model the turkey as a cylinder withaspect-ratio of 1.0 (i.e., with equal length and diameter) and thermal properties that are close to those ofwater; k = 0.90 Wm-1K-1 ; cp = 4.2 kJkg-1 K-1 ; r = 1200 kgm-3 b. To be cooked, the temperature everywhere within the turkey must be raised to at least 90 ̊C. Howlong does it take for the center of the turkey to be cooked?c. Determine the surface temperature of the turkey when its center is first cooked.

Calculate the total energy, in kilojoules, that is needed to turn a 12 g block of ice at 0 degrees C into water vapor at 135 degrees C.

Estimate the thermal conductivity of benzene at 30C.

A 3 meter tall aluminum tank with a 7 meter diameter is completely filled with ethanol. The empty weight of the tank is 250 kg. If the ethanol starts at 25 deg C, and there is 3000 kJ of heat available for transfer, what final temperature can be reached? And, what percentage of the heat transferred does the ethanol and aluminum each account for? (ethanol density = .789 kg/L)

Calculate the energy stored in 1000 cm3 of gas at 80 MN/m2 at 290 K using STP as thedatum

A 10 cm thick piece of beef steak will be frozen in the freezer room -40 ° C. This product has a moisture content of 73%, a density of 970 kg / m³, and a thermal conductivity (frozen) of 1.1 W / (m K). Estimate the freezing time. using the Plank equation. This product has an initial freezing temperature of -1.75 ° C, and the movement of air in the freezing room gives a convective heat transfer coefficient of 15 W / (m² K). t f =       hour

Estimate the thermal conductivity of tomato juice at 35 ° C. (Water content = 87.0% wet basis). Thermal conductivity of material = AnswerW / m ° C

The plot to the right shows the 1-D steady-state solution to the Pennes bioheat equation with T = 37°C at x = 0 (body core) and T = 43°C at x = 0.01 (body surface). The thermal conductivity is 0.5 W m-l °C-'. This scenario describes some surface tissue thermal conductivity (WI(m°C)) 0.5 blood perfusion rate (1/5) T("C) 43 heating (e.g., laser). Which trace represents the highest value of the blood perfusion rate. 42 41 A 40 А. А В. В 39 38 E С.С 0.002 X(m) 0.010 0.004 0.006 0.008 D. D Е. Е

Answer: 24.187 °C