27. This problem compares the energy output and heat transfer to the environment by two different types of nuclear power stations—one with the normal efficiency of 34.0%, and another with an improved efficiency of 40.0%. Suppose both have the same heat transfer into the engine in one day,  2.50×1014J . (a) How much more electrical energy is produced by the more efficient power station? (b) How much less heat transfer occurs to the environment by the more efficient power station? (One type of more efficient nuclear power station, the gas-cooled reactor, has not been reliable enough to be economically feasible in spite of its greater efficiency.)

Q: *96. D Heat flows from a reservoir at 373 K to a reservoir at 273 K through a 0.35-m copper rod with…

A: Given data: The temperature of the reservoir 1 is T1=373 K. The temperature of the reservoir 2 is…

Q: Does a heat engine that has a thermal efficiency of 100 percent necessarily violate (a) the first…

A:

Q: A 4-ton air conditioner removes 5.06×107 J (48,000 British thermal units) from a cold environment in…

A: Given: air conditioner removes 5.06×107 J Or 48000 British thermal units Time 1 hr or 3600 sec (a)…

Q: The energy transferred by heat from an engine during one cycle is 500 J. How much energy must be…

A: Solution: Given that Heat transferred Q = 500 J efficiency = 30% efficiency

Q: An electrical power station uses 1.48  1014 J of heat input with an efficiency of 34.7%. (a) How…

A:

Q: The efficiency of an engine is 0.510.  For every 1.20 kJ of heat absorbed by the engine, how much…

A:

Q: This problem compares the energy output and heat transfer to the environment by two different types…

A:

Q: A steam engine delivers 5.4×108 J of work per minute and services 3.6×109J of heat per minute from…

A: Given :W= 5.4 x 108JH= 3.6 x 109J

Q: A proposed ocean thermal-energy conversion (OTEC) system is a heat engine that would operate between…

A:

Q: A heat pump creates a heating effect of 32,000 Btu/h for a space maintained at 530 R while using 1.8…

A:

Q: You perform maintenance on an engine, increasing its efficiency by 9.86 %.  How much more work is…

A: Given:- The efficiency of the engine is increasing by 9.86 %. The heat input is 1367 J  Find:- How…

Q: - What is the change in internal energy (in J) of a system that does 4.50 ✕ 105 J of work while…

A:

Q: A large electrical power station generates 921 MW of electricity with an efficiency of 39.6%.…

A:

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: 55. An engine does 18 500 J of work and rejects 6550 J of heat into acold reservoir whose…

A: Work, W = 18500 J  heat rejected, Qc = 6550 J  Cold temperature, Tc = 285 K

Q: Using data from Table, calculate the daily energy needs of a person who sleeps for 8.00 h, walks for…

A: The surface area of the person is found as,

Q: The ground temperature a few meters below the surface is fairly constant throughout the year and is…

A: It has been observed that the temperature below the ground is more stable than the temperature above…

Q: An engineer designs a heat engine using flat-plate solar collectors. The collectors deliver heat at…

A:

Q: 19. (I) What is the maximum efficiency of a heat engine whose operating temperatures are 560°C and…

A: Given data, Source Temperature (TH)=5600C Sink Temperature (TL)=3450C

Q: A freezer needs an input power of 93.6 W to convert 1.80 kg of water at 25.0°C to 1.80 kg of ice at…

A:

Q: This problem compares the energy output and heat transfer to the environment by two different typ…

A: Given:- The normal efficiency of  η1= 32.16%  η2= 43.52% The same heat transfer into the engine in…

Q: 10. An engine has a hot reservoir that contains 20,000 J of heat energy at 327° C, and a cold…

A: Given data: The heat energy in the hot reservoir, Q1=20000 J. The heat energy in the cold…

Q: 9.The heat exhausted to the heat sink by a gasoline heat engine of a SUV is twice the mechanical…

A:

Q: . If an incandescent light bulb requires 100 units of potential energy to deliver only about 15…

A: Given , Bulb require 100 unit of potential energy to deliver only 15 units of kinetic energy ( in…

Q: The second law of thermodynamics states that heat by itself flows only from bodies of higher…

A: The second law of thermodynamics states that heat by itself flows only from bodies of higher…

Q: When one gallon of gasoline is burned in a car engine,1.19x108J of internal energy is released.…

A: The amount of heat   Q=-1.0×108 J Change in internal energy is  ΔU=-1.19×108 J There is a loss of…

Q: 69. A Carnot refrigerator is used in a kitchen in which the temperature is kept at 301 K. This…

A: Given: The temperature of kitchen is TH=301 K. The refrigerator work is W=241 J. The heat removed…

Q: 1. If a heat engine is working between 136.5 ° C and 273 ° C. Then, the efficiency of the heat…

A: Given  that,                        T1 = 136.5+273 =409.5K                        T2 = 273+273    =…

Q: The Bodø NATO base in northern Norway uses a heat pump to extract heat from ocean water. 7.0°C ocean…

A: Given Data: The final temperature of the ocean water is, T2=7°C The initial temperature of the ocean…

Q: Let 1.00 kg of liquid water at 100°C be converted to steam at a pressure of 1.01 * 105 Pa. The…

A: Given data: 1kg of water  Initial temperature of water = 100°c Final temperature of steam = 100°c…

Q: Suppose a heat engine is connected to two energy reservoirs, one a pool of molten aluminum (660°C)…

A: Given Temperature of the aluminum source TC = 660oC Temperature of the mercury sink TH = -38.9oC…

Q: With 2.56 × 10^6 J of heat transfer into an engine, it performs only 1.50 × 10^5 J of work. (a) What…

A: Given data:  Heat transfer into the engine QH = 2.56×106 J Work done (W) = 1.50×105 J Required: The…

Q: A Carnot air conditioner takes energy from the thermal energy of a room at 70 F and transfers it as…

A: The temperature are given in Fahrenheit. Convert these temperatures into Kelvin.

Q: A 95.0-kg block of ice at 0.00°C breaks off from a glacier, slides along the frictionless ice to the…

A:

Q: An automobile engine consumes fuel at a rate of 22 L/h and delivers 55 kW of power to the wheels. If…

A: The given values are,

Q: 32. A gasoline engine takes in 2500 J of the heat and delivers 500J of mechanical work per cycle.…

A: Please note : As per answering quidelines I can answer the first question(Q.32) only. Since this is…

Q: A heat engine receives heat from a source at 1500 K at a rate of 600 kJ/s and rejects the waste heat…

A: The efficiency of reversal heat engine is nrev=1-TLTH Here, TL is the low source temperature, TH is…

Q: If a machine does 74.76 kJ of work after an input of 88.36 kJ of heat, what is the change in…

A:

Q: The first law of thermodynamics relates the heat transfer into or out of a system to the change of…

A: The first law of thermodynamics can be written as, ΔU=Q-W Here, ΔU is the change in internal energy…

Q: 14. Calculate the net work output of a heat engine following path ABCDA in the figure below. P (10°…

A:

Q: 18. With 2.56 x 10°) of heat transfer into this engine, a given cyclical heat engine can do only…

A: Efficiency of an engine is defined as the ratio of work done to heat provided to engine. Efficiency…

Q: 47. Due to a tune-up, the effi ciency of an automobile engine increases by5.0%. For an input heat of…

A: The increase in efficiency of engine is 5%. The expression for the increase in efficiency of engine…

Q: You add 2353 J of heat to a system at constant pressure of 2.03 x105 Pa.  While doing so, its…

A: