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Convert to SI Unit:
10 kcal/min ft oF to W/mK
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- The average electricity consumption of a house in Gainesville is known to be 1,007 kWh in a month (One month = 30 days). They would like to install solar panels of 29 % efficiency to generate this electricity. Given that the average solar power density in Gainesville is 5.47 kWh/m2/day, how much surface area must the panels occupy? Calculate the result in m2 but do not write the unit. Round off %3D you answer to a whole number (zero decimal place.)A person consumes about 2700 Cal a day. 1 Cal = 4186 J, and 1 kWh = 860 Cal. Part A What is this energy in joules? (2 sig figs) Part B What is this energy in kilowatt-hours? (2 sig figs) Part C If a power company charges about 10 ¢ per kilowatt-hour, how much would this energy cost per day if the person bought it from the power company? (2 sig figs)The specific reaction rate constant k is a strong function of temperature according to the following equation: 1 In the equation above, the reaction rate constant k is expressed in R is the universal gas constant 8.314- What is the unit of A? O mol m OK Om O J O mol K J mol 01 S Pa.m ³ m k=Axexp- Pa.m³ constant (1.314 P-²). mol. K E RT and T is the absolute temperature in K. The equation is dimensionally homogenous.
- 3 R.Calculate the AS (J/K), if Fini The temperature of 6 mole of an ideal gas is increased from 176 K to 750 K, and its given that C,=R the volume is constant. O a. 72.3 O b. 542.3 о с. 162.7 O d. 108.5The temperature of 4 mole of an ideal gas is increased from 114 K to 524 K, and its given that C, R.Calculate the AS (J/K), if the volume is constant. O a. 76.1 O b. 50.7 O c. 380.4 O d. 114.1 3/22Q. Thermodynamics Complete Solution
- Write the derivation of Conversion formulas for Temperature unit ⁰CA mass of steam at 120°C is added to 2kg of ice at 0°C to yield water at 20°C. What is the total amount of energy in Joules is lost by the steam? ROUND OFF YOUR ANSWER IN WHOLE NUMBER. DO NOT WRITE THE UNIT IN YOUR FINAL ANSWER. L = 3.34x10²; Lv 2.26x106 Cwater = : 4186 kg.C; Csteam = 2010- kg.C =10:55 > t.myexams.unisa.ac.za MENU E Frag question A. 5.0 x 108 ft³ B. 6.0 x 108 ft³ C. 8.6 x 108 ft³ D. 2.1 x 108 ft³ E. 4.8 x 108 ft³ ||| Vol) 4G LTE2 T The largest building in the world by volume is the Boeing 747 plant in Everett, Washington. It measures approximately 650 m long, 710 yards wide, and 110 ft high. What is its volume in cubic feet? O 47 71% < myExams
- Estimate the difference between the normal and standard melting points of ice. (what is the normal pressure and what is the standard?) Answer= -1.0 x 10 -4 KNo. of mole of such substance is equal to the Molarity concen. X volume in ml. True FalseProblem 5.5: A kitchen oven has an interior volume V of 0.12 m³. The air in the oven is preheated from an initial temperature To of 20°C to a baking temperature T₁ of 175°C. The initial pressure po inside the oven equals the outside pressure of 1000 hPa. 2 a) If the oven is sealed (i.e., the process is isochoric), how much heat is added to the air in the oven? Answer: 1.6 × 104 J b) If the oven is not sealed (the normal case), air will gradually leak out as the air expands from heating, so that the process is iso- baric. Assume that the air leakage is one-way (no outside air enters the oven). How much total heat is added to the air? (Hint: You are heating not only the air that remains in the oven at the end of the heating process but also some of the air that escapes. You will have to set up and integrate a differential equation. Assume that the air temperature inside the oven is always uniform at any point in the
