The motor that drives a refrigerator produces 151 W of useful power. The hot and cold temperatures of the heat reservoirs are 20.0°C and -5.00°C. What is the maximum possible amount of ice it can produce in 2.00 h from water that is initially at 8.00°C? Latent heat of fusion of ice is 333700 J/kg and specific heat capacity of water is 4186 J/(kg K). |kg
Q: To make steam, you add 5.60 * 105 J of thermal energy to0.220 kg of water at an initial temperature…
A: Determine the heat required to heat the water to 100oC as follows. Q1=mc∆T=0.220 kg4186 J/kg·°C100°…
Q: |A snow maker at a resort pumps 130 kg of lake water per minute and sprays it into the air above a…
A: Given data: The mass of the water pumped by snow maker per minute is m=130 kg. The ambient air…
Q: A heating coil inside an electric kettle delivers 5.10 kW of electric power to the water in the…
A:
Q: An ideal heat pump uses a cold reservoir with TC = 22°C. The heat pump uses 22 J to remove 94 J from…
A:
Q: An aluminum rod is 18.9 cm long at 20°C and has a mass 350 g. If 12,000 J of energy is added to the…
A:
Q: A coal- burning steam locomotive heats steam to 180°C and exhausts it at 100°C. During 1 s of its…
A: Refer Table “Heat engine efficiencies. Typical input and exhaust temperatures, ideal (best possible)…
Q: & 1000 kJ of heat leaves hot gases at 1400°C from a fire box of a boiler and goes to steam at 250°C.…
A: Given: Amount of heat = 1000 KJ Temperature = 14000 C Atmospheric temperature = 200C
Q: AE for a system is 20 kJ. If 175 kJ of work was done on the system, how much heat was released? A…
A:
Q: The motor that drives a refrigerator produces 174 W of useful power. The hot and cold temperatures…
A:
Q: Suppose a woman does 600 J of work and -9400 J of heat transfer occurs into the environment in the…
A: Work, W = 600 JHeat, Q = -9400 JEfficiency, Eff = ?
Q: A freezer has a coefficient of performance of 2.40, and must convert 1.80 kg of water at 25.0 °C in…
A:
Q: Suppose that you had water in a pot on a stovetop. Neglecting the material that the pot is made out…
A: Given data: Power (P) = 1000 W Mass (m) = 1.44 kg Initial temperature (T0) = 10°C Final temperature…
Q: How much total heat transfer is necessary to lower the temperature of 0.155 kg of steam from 145.5…
A: mass = 0.155 kg initial temperature = 145.5 C final temperature = - 15.5 C Total heat energy…
Q: How much energy does a refrigerator remove from 90.0 g of water at 28.0 °C to make ice at -11.0°C ?
A: Mass of water (m) = 90.0 gSpecific heat capacity of water (cw) = 4.186J/g°CSpecific heat capacity of…
Q: 1 kg of ice, at -20°C, is taken out of the freezer and placed in a pot on a stove. If the stove's…
A: Heat capacity of Ice & Water: Heat capacity (C) of Ice & Water of unit mass is defined as…
Q: 1. A cylinder is pressurized to 3.44 X10^5 Pa. As heat is added and the gas expands, the piston is…
A: Given Data: The pressure inside the cylinder is: P=3.44×105 Pa The initial volume of the cylinder…
Q: If the plant operates at 50.0% of its maximum efficiency and its power output is 1.23 × 108 W, at…
A: The given data are: TH=540 KTL=313 KQH=1.23×108 W Here, TH is the higher temperature, TL is the…
Q: How much total heat transfer is necessary to lower the temperature of 0.215 kg of steam from 145.5…
A:
Q: You are boiling water in a pot on the stove for your tea. Being the brilliant scientist you are, you…
A: Given. The 0.1 kg of water in a pot is boiling at 100 degrees celsius. In the process of boiling the…
Q: How long in minutes does it take a 1000W electric kettle to bring 1.0L of water to the boiling point…
A: A) Power = 1000 W volume of water = 1 L initial temperature = 15oC mass of iron = 400 g Efficiency =…
Q: A frictionless piston–cylinder device contains 10 lbm of steam at 60 psia and 320°F. Heat is now…
A:
Step by step
Solved in 3 steps with 3 images
- How much heat energy is required to raise 3.97 g of aluminum by 17.0 K? A. 0.23 J B. 73 J C. 62 J D. 67 J1. What is the change in internal energy of a system when a total of 150.00 J of heat transfer occurs out of (from) the system and 159.00 J of work is done on the system? (See image below) W = - 159 J System 159 J in 150 J out Qout = - 150J AU = Q - W = - 150 J - (-159 J) = +9JA steam turbine operates with 1.6 MPa and 350°C steam at its inlet and saturated vapor at 30°C at its exit. The mass flow rate of the steam is 22 kg/s, and the turbine produces 12,350 kW of power. Determine the rate at which heat is lost through the casing of this turbine.
- On a trip, you notice that a 5.30-kg bag of ice lasts an average of one day in your cooler. What is the average power in watts entering the ice if it starts at 0°C and completely melts to 0°C water in exactly 24 hours (1 Watt-1 Joule/second and Latent heat of fusion of water is 334 kJ/kg and latent heat of vaporisation of water is 2256 kJ/kg) O A. 20.49 W O B. 1770 W ○ C. 20.49 kW O D. None of the options provided is correct. O E. 78.44 W800 J of work are done BY a system in a process that decreases the thermal energy of the system by 50 J. How much heat is transferred TO the system during this process? If the system gains heat, answer with a positive number. If the system loses heat, answer with a negative number. (in J) -750 750 -850 -50 0Review | Seals may cool themselves by using thermal windows, patches on their bodies with much higher than average surface temperature. Suppose a seal has a 0.030 m? thermal window at a temperature of 30° C.(Figure 1) Part A If the seal's surroundings are a frosty -18 °C, what is the net rate of energy loss by radiation? Assume an emissivity equal to that of a human. Express your answer in watts. ? Qnet W At Submit Request Answer Figure < 1 of 1 < Return to Assignment Provide Feedback 33.0 C 30 25 20 15 62 min 1.5°C
- A 0.040 kg ice cube at 0 Celcius is placed in an insulated box that contains 0.007kg of steam at 100 Celsius. What is the equilibrium temperature reached by the closed system. NOTE: All of the ice meltsA heat machine is working between two thermal reservoirs with the temperatures of 800oC and 20oC. ¼ of the work of heat machine is being used to operate a Carnot heat pump. This heat pump draws heat from the outside environment at a temperature of 2oC and transfers it to a home at a temperature of 22oC. Given house is losing a heat of 62000 kJ per hour to the outside world, the heat engine must be supplied to keep the house stable at 22oC. Calculate the minimum amount of heat that should be supplied to the heat machine to keep the house stable at 22 degrees.The water in a deep underground well is used as the cold resevoir of a Carnot heat pump that maintains the temperature of a house at 303 K. To deposit 13000 J of heat in the house, the heat pump requires 716 J of work. Determine the temperature of the well water.
- Suppose 9.30 x 105 J of energy are transferred to 2.00 kg of ice at 0°C. (a) Calculate the energy required to melt all the ice into liquid water. (b) How much energy remains to raise the temperature of the liquid water? (c)Determine the final temperature of the liquid water in Celsius.A jet of steam at 100°C is applied to a 2.00 kg block of ice at 0°C. How many grams of steam would be required to completely melt the ice assuming a complete transfer of thermal energy? nA d bloow olle boutaig erd 15000 lo yolla an ai e W lobin bna 1900 lo yolla ns e losbinom 4