An extraterrestrial scientist invents a temperature scale such that water freezes at -100°E and boils at 400°E, where E stands for an extraterrestrial scale. Find an equation that relates temperature in °E to temperature in °C.
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An extraterrestrial scientist invents a temperature scale such that water freezes at -100°E and boils at 400°E, where E stands for an extraterrestrial scale. Find an equation that relates temperature in °E to temperature in °C.
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- Convert the following to equivalent temperatures on the Celsius and Kelvin scales: (a) the normal human body temperature, 98.6F; (b) the air temperature on a cold day, 5.00F.At 25.0 m below the surface of the sea, where the temperature is 5.00C, a diver exhales an air bubble having a volume of 1.00 cm3. If the surface temperature of the sea is 20.0C, what is the volume of the bubble just before it breaks the surface?A patient has an illness that typically lasts about 24 hours. The temperature, T, in degrees Fahrenheit, of the patient t hours after the illness begins is given by: T(t) = -0.012t² +0.3t +98.7. Use your calculator to graph the function and answer the following questions. Round all answers to 1 decimal place. When does the patient's temperature reach it maximum value? Answer: After hours What is the patient's maximum temperature during the illness? Answer:
- . The hottest temperature on a planet was 864°F recorded on Venus by the Soviet Venera probe and the U.S. Pioneer probe. The coldest place in the solar system is Pluto where the temperature is estimated at 1360.0°F. Calculate each of these temperatures in degrees Celsius.A gas is heated to 75 °C and a pressure of 200 kPa. If the container is compressed to hold a volume of 700 mL, what was the volume of the gas, (in litres), at a temperature of 40 °C and 100 kPa pressure? B. A vessel of volume 5x10-5 m3 contains hydrogen at a pressure of 1.5 Pa at a temperature of 37 °C. Estimate: i. The number of molecules of hydrogen gas in the vessel. (4 marks) ii. The number of moles of hydrogen. iii. Mass of hydrogen iv. The kinetic energy of hydrogen. v. The root mean square speed. Given: M = 1.008 g/mol; R = 8.31 J/mol-K; NA = 6.02 x 1023 mol-1; k = 1.38 x 10-23 J/KA particular pair of human lungs have a volume of 1.8 L when inflated. At this volume, the temperature inside the lungs is 98.7°F. If the temperature of the air outside the lung is 43.2°F, what volume of cooler outside air is being inhaled and warmed? Round your answer to 2 decimal places.
- Q1. a) Choose which quantity/unit is fundamental, or derived quantity/unit by ticking (√ ). Sl No Quantity Fundamental Quantity Derived Quantity Fundamental Unit Derived Unit Example m/s √ 1 volume 2 J/kg 3 viscosity 4 N/m 5 Surface tension 6 Angular velocity 7 s-2 8 Heat flux density 9 V/m 10 Thermal conductivityA person taking a reading of the temperature in a freezer in Celsius makes two mistakes: first omitting the negative sign and then thinking the temperature is Fahrenheit. That is, the person reads – x °C as x °F . Oddly enough, the result is the correct Fahrenheit temperature. What is the original Celsius reading? Round your answer to three significant figures.´What's your normal body temperature? It may not be 98.6 °F, the often-quoted average that was determined in the nineteenth cen- tury. A more recent study has reported an average temperature of 98.2 °F. What is the difference between these averages, expressed in Celsius degrees? 4.
- Temperatures in Biomedicine. (a) Normal body temperature. The average normal body temperature measured in the mouth is 310 K. What would Celsius and Fahrenheit thermometers read for this temperature? (b) Elevated body temperature. During very vigorous exercise, the body’s temperature can go as high as 40OC. What would Kelvin and Fahrenheit thermometers read for this temperature? (c) Temperature difference in the body. The surface temperature of the body is normally about 7CO lower than the internal temperature. Express this temperature difference in kelvins and in Fahrenheit degrees. (d) Blood storage. Blood stored at 4.0OC lasts safely for about 3 weeks, whereas blood stored at -160OC lasts for 5 years. Express both temperatures on the Fahrenheit and Kelvin scales. (e) Heat stroke. If the body’s temperature is above 105OF for a prolonged period, heat stroke can result. Express this temperature on the Celsius and Kelvin scales.A 900 g copper rod at 20 degrees celcius has a length of 1.0000 m. The thermal expansion coefficient of copper is 17 x 10^-6 degrees celcius -1. The specific heat capacity is 0.385 kJ/kg degrees celcius. Question A: The copper is heated to 400 degrees celcius. What is the new length? Give the answer in meters and with 4 digits of precision after the decimal. Question B: The hot copper is then quenched by dunking the entire rod in a bucket with 10 kg of water at 20 degrees celcius. The specific heat capaciy of water is 4.18 kJ/kg degrees celcius. If none of the water turns to steam what is the equilibrium temp of the copper rod and water? Please give the answer in degrees celcius Question C: You measure the equilbrium temp and find that it is 24 degrees celcius. If the latent heat of vaporization of water is 2,260 kJ/kg, what mass of water turned to steam? Answer in gramsA bowl of soup at 80° C sits in a 20° C room and cools to 74° C after 1 minute. S Using the model for Newton's Law of Cooling T(t) = (To-Ts)ekt +Ts, where To is the initial temperature of the object and T', is the temperature of the surroundings, write the equation for the temperature of the bowl of soup after t minutes in the room. You will need to determine the value of k using the given information.