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What is occurring during the flat portions of the energy diagram? - 1 attachment - Energy...
Introduction of renewable energy 1) Draw a schematic diagram of a passivesolar water heater and write in numbered steps how it works (2 marks) In what specific applications can solar water heater be used? (1 mark) Consider a solar water heater with a flat plate collector of area 6 m-positioned in a place where the solar irradiance is 800 W/m a) How much solar power reaches the collector? (1 mark) b) If the flat plate collector has 50% efficiency, how...
Energy/Specific Heat (q=mcAT) 1. Determine the energy, in Joules, needed to increase the temperature of 20.00 g of water from 300.0 K to 365.0 K. (Remember that one degree of Celsius contains the same amount of energy as one Kelvin.) 2. Determine the energy, in Joules, released as 1.00 kilogram of water cools from 72.0°C to 30.0°C. 3. 25.0 g of mercury are heated from 25.0° C to 155.0°C and absorbs 455 joules of heat in the process. Calculate the...
1. Two pots are identical except that the flat bottom of one is aluminum, whereas that of the other is copper. Water in these pots is boiling away at 100.0 ˚C at the same rate. The temperature of the heating element on which the aluminum bottom is sitting is 166 ˚C. Assume that heat enters the water only through the bottoms of the pots and find the temperature of the heating element on which the copper bottom rests. 2. A...
2) A reaction occurring in a calorimeter absorbs 850.01 of energy. The initial temperature of 200.0g of water is 24.5 "C Do you expect the temperature of the water to increase or decrease? Explain? Calculate the final temperature of the water. 329
(b) Using the above diagram, translate the diagram into PV diagram and label the diagram accordingly. [5 Marks) (c) A heat engine absorbs 4.5 kJ of heat energy and discards 2.5 kJ into the environment. Determine the efficiency of this heat engine. [5 Marks] d) Calculate the maximum non-expansion work per mole that may be obtained from a fuel cell in which the chemical reaction is the complete combustion of methane (CH4) at 25°C. [6 marks) e) Determine the mass...
In the pV diagram shown in the figure(Figure 1), 85.0 J of work was done by 0.0630 mole of ideal gas during an adiabatic process. Part A How much heat entered or left this gas from a to b? Express your answer in joules. Vα ΑΣφ ? Q = J Request Answer Submit Part B Figure By how many joules did the internal energy of the gas change? 1 of 1 Express your answer in joules. p (atm) Nνα ΑΣφ...
Part A Ar t wo portions of w Assume you are performing the calibration step of Experiment and you begin with 50 g of water at 20 cand espennt you to the temperature of the mood portions of the 45 What is the heat Assume room temperature is 25°c. BD ABD RO?
17.55. Use equation 17.56 to determine the change in energy, AE, when 1 mole of Ar is heated from 298 K to 348 K at constant volume. Compare this result with the change in energy calculated using (mass)(specific heat)(change in temperature). The specific heat of argon is 20.79 J/(moly. 17.55. Use equation 17.56 to determine the change in energy, AE, when 1 mole of Ar is heated from 298 K to 348 K at constant volume. Compare this result with...
Question 3 (25 pts): 1. The following PV diagram shows an adiabatic process. How m though the process (10 pts)? uch heat is being transferred Work done 2. Winter is here and you made Chicken soup in a pot with a volume of V4 quarts, which equals to 945 cm. The density of the soup is similar to that of water--1000 kg/m.You decide to keep the soup in the freezer at temperature of -15 C. How much energy is required...
What is the heat capacity (defined as energy in joules necessary to raise it's temperature by one degree C) of a mole of a monatomic gas?