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- The density or gasoline is 7.30 102 kg/m3 at 0C. Its average coefficient of volume expansion is 9.60 104(C)1 and note that 1.00 gal = 0.003 80 m3. (a) Calculate the mass of 10.0 gal of gas at 0C. (b) If 1.000 m3 of gasoline at 0C is warmed by 20.0C, calculate its new volume. (c) Using the answer to part (b), calculate the density of gasoline at 20.0C. (d) Calculate the mass of 10.0 gal of gas at 20.0C. (e) How many extra kilograms of gasoline would you get if you bought 10.0 gal of gasoline at 0C rather than at 20.0C from a pump that is not temperature compensated?What are the values of temperature at different temperature scales for SATP(Standard Ambient Temperature and Pressure)?On average, would Earth be warmer or cooler without the atmosphere? Explain your answer.
- In one day, the temperatures of a desert range from 110°F in the afternoon to 55°F at night. What is this temperature range on the Kelvin scale?Living creatures generally have a higher temperature than their environment. Explain why this makes sense.At what temperature does Celcius and Kelvin Temperature scales give the same reading?
- Hovering over the surface of our skin is a layer of air some 3 millimeters in thickness that acts as a thermal blanket. On a hot day, what effect does a breeze on bare skin have on your skin? What effect does it have on a cold day?What would be 200° C on this temperature scale?Consider an object in a surrounding with constant temperature of 25℃. If the temperature of the object decreases from 100℃ to 90℃ in 10 minutes, how much longer will it take for its temperature to cool to 80℃ ?
- 3. 5 liters of water is heated from 35°C to 80°C, what is change in volume of water? If 500 gm of oxygen gas is heated from 35°C to 80°C, what will be the change in volume of gas (consider gas is heated at atmospheric pressure)? (Volumetric expansion coefficient Bwater = 210 x 10-6 Bgas = 3400 x 10-6, Density of Oxygen gas = 1.40 Kg/m) %3DExample: A water tank with a wall thickness of 10 mm and a water temperature of 90 "C.) Calculate the average heat loss per square meter (unit area) if the ambient air temperature is 15 "C. Take the thermal conductivity coefficient of the wall material 50 W / m C, the water heat-convection coefficient of 2800 W/m2°Cand the heat-convection coefficient of the ambient air 11 W/m2°C. Calculate the two temperatures of the wall surfaces.The temperature of the air in thermals decreases about 108C for each 1,000 m they rise. If a thermal leaves the ground with a temperature of 308C and a relative humidity of 31 percent, at what altitude will the air become saturated and the water vapor begin to condense to form a cloud? (In other words, at what altitude does the temperature equal the dew point?