The temperature of a system rises by 120°C during a heating process. Express this rise in temperature in kelvin. The rise in temperature is 393 K.
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- 1.22 In order to prevent frostbite to skiers on chair lifts, the weather report at most ski areas gives both an air temperature and the wind-chill temperature. The air temperature is measured with a thermometer that is not affected by the wind. However, the rate of heat loss from the skier increases with wind velocity, and the wind-chill temperature is the temperature that would result in the same rate of heat loss in still air as occurs at the measured air temperature with the existing wind. Suppose that the inner temperature of a 3-mm-thick layer of skin with a thermal conductivity of 0.35 W/m K is and the air temperature is . Under calm ambient conditions the heat transfer coefficient at the outer skin surface is about (see Table 1.4), but in a 40-mph wind it increases to . (a) If frostbite occurs when the skin temperature drops to about , do you advise the skier to wear a face mask? (b) What is the skin temperature drop due to the wind?Q10: The temperature of ambient air in a certain location is measured to be 240°C. Express this temperature in Fahrenheit (°F), Kelvin (K), and Rankine (R) units.9. A closed vessel contains air at a pressure of 160 kN/m2 gauge and temperature of 30oC. The air is heated at constant volume of 60oC with the atmospheric pressure as 759 mm Hg. What is the final gauge pressure? (3 DECIMALS IN FINAL ANSWER PLS)
- In U.S., the fuel consumption of an automobile is expressed in X miles per gallon. Obtain a single factor that could be used to convert the C miles per gallon to km per literstate the following pressures as absolute pressure in pascals relative to 1 standard atmosphere 1. -1.0132kPa 2. 760 mmHg 3. 29.92 in Hg absolute 4. 5 lb/in^2The Ideal gas law shows the relationship between some common properties of ideal gases and is written as PV = nRT. P = pressure, V = volume, n = number of moles of ideal Gas, R = General gas constant = 8.314 kJ/(kmol.K) and T = absolute temperature. 5 mol ideal gas at 22°C is placed in a cube with edge lengths of 0.750 meters. Calculate the pressure of the Ideal gas as [Pa].
- Select the letter of the correct statement. Write the answer with calculations, drawing, rules or explanation 1-) Person (approximated as a cylinder of 50 cm diameter and 160 cm long) walks with a velocity of 1 m/s in air(y = 15*105 m2/s). If the person velocity was doubled, the rate of heat loss from that person by convection. A-) increases 2 times. C-) increases 1.7 times. B-) decreases 2 times. D-) increases 1.3 times E-) No Change.Exhaust gas leaves the exhaust pipe of a motor car with a pressure of 1.2 bar and a temperature of 4000C. If the exhaust gas specific was 1.6653 m3 per kg, determine the identity of the exhaust gas. please show the formula used and cancellation of units, if possible include illustration also.A spherical research balloon is filled with 420 m3 of atmospheric air at a temperature of 10°C. If the air inside the balloon is heated to 80°C according to PVn =C, where n = 0. What will be the final diameter of the balloon? show cancellation of units and formula used
- At a certain point on the wing of the aircraft, the pressure is 37,803 Pa and the density is 45% of the standard sea level values. Determine the temperature (Kelvin) at that point? Use standard metric units and round off answer to the nearest hundredths.Convert the following pressures to absolute pressure. Report the answer in the given units. You may assume that the atmospheric pressure at the time of the measurement was a standard atmosphere. (a.) 8.56 psig (b.) 18 inches of mercury vacuum (c.) 10 atm water gage pressure (d.) 15.6 inches of water gage pressureWhat is the specific internal energy of water at 50°C with a specific enthalpy of 1500 kJ/kg? Report your answer to one decimal place using rounding.