Q. 52 A heat engine converts 1/6th of input heat into work. When temperature of sink is reduced by 62 K the efficiency of engine becomes 1/3. The temperature of source is 362 K (b) 372 K 392 K (d) 412 K (a) (c)
Q: A container with 50 g of a certain liquid (c = 4186 J/kg · °C, Lv=2265 kJ/kg) at 22 °C is heated up…
A: Given:mass of liquid, m = 50×10−3 kgspecific heat , C = 4186 J/kgoClatent heat of vaporization, Lv…
Q: A gas engine absorbs 2500 kJ of heat in a 5.5 s heat cycle. The amount of heat exhausted per cycle…
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Q: a) A heat engine operates at a 40% efficiency. The heat input is 20,000 J. How much work does this…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Calculate the net work output (in J) of a heat engine following path ABCDA in the figure, where V1…
A: PV diagram shown in picture. That refers to the pressure vs volume graph. In the PV diagram, the…
Q: An ideal gas follows the thermodynamic path shown in the figure. From "A" to "B" the process is at…
A: Solution: Step I : Given, @ AB =140KJ @CD =-200KJ (hut…
Q: A container with 41 g of a certain liquid (c = 4171 J/kg · °C, Lv=2224 kJ/kg) at 22 °C is heated up…
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Q: The work from a Carnot engine between two reservoirs at TH=847 K and T=523 K is used to operate a…
A: Solution: Given Values, TH=847 KTL=523 K
Q: A separate engine operates with a hot reservoir temperature of 600 K and a cold reservoir…
A: Given T1 =600 K And T2=300 K Find the maximum efficiency.
Q: One of the most efficient engines ever built is a coal-fired steam turbine engine in the Ohio River…
A: Given that Th=1,870°C = 1870+273.15=2143.15 K Tc= 430°C=430+273.15=703.15 K
Q: One of the most efficient engines ever built is a coal-fired steam turbine engine in the Ohio River…
A: Given data The higher temperature is given as Th=1870°C. The lower temperature is given as…
Q: 50. A monatomic ideal gas undergoes the reversible cyclic process (ABCA) shown in the PV diagram.…
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Q: A 0.750-L cup of coffee at 82.0 °C is left outside where the temperature is 4.00 C. Assume the…
A: Given data: The volume of coffee is V=0.750 L. The initial temperature of coffee is t=82oC. The…
Q: An often-overlooked consequence of power generation is “thermal pollution” from excess heat…
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Q: A heat engine absorbs 2500 J of heat at 250°C and expels 2000 J at a temperature of 50°C. The change…
A: Given: Heat absorbed at T1=250°C is Q1=2500 J Heat expelled at T2=50°C is Q2=2000 J
Q: On a hot summer day, 4.00×106J of heat transfer into a parked car takes place, increasing its…
A: The expression used to find average temperature is T=T1+T22 Insert values in the above equation…
Q: Problem 1) The figure below shows a thermodynamic cycle in the P-V diagram. a) Determine the amount…
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Q: A heat engine operates with sink temperature 25° with the efficiency of 30%. By how many kelvins…
A: Given, here Temperature of Heat sink is TC and initial and final efficiencies are denoted as η1 and…
Q: Q.4) Suppose 100 J of work is done on a system and 60.0 calis extracted from the system as heat in…
A: Given : 100 J of work is done on a system and 60.0 cal is extracted from the system as heat
Q: a) In a certain process, the temperature rises from 0.00 °C to 100 °C as 1000 J of heat are…
A: Solution:-Given that(a) Initial temperature (T1)=0°CFinal temperature (T2)=100°CHeat extracted =1000…
Q: A system undergoes successively the following cycle of processes: a) Heating of 168.7 J is done to…
A: here we will use first law of thermodynamics∆Q=∆U+∆Wit is just energy conservationlet initial…
Q: An ideal gas undergoes an adiabatic process while doing 25 J of work. Delta E = zero. How much work…
A: ideal gas undergoes an adiabatic process while doing 25 J of work. to find: work is done by the…
Q: A lab rat lifts a 200 g mass 1.55 m high as it spins on a Ferris wheel. At the same time, it loses…
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- A Carnot engine has an efficiency ecarnot= 0.600. The temp. of the hot reservoir is 875 K. part a) What is the temperature of the cold reservoir? part b) If QH = 12500 J of heat from hot reservoir enters the engine, what amount of heat (Qc) enters the cold reservoir? part c) What amount of work W would the engine perform?One of the most efficient engines ever built is a coal-fired steam turbine engine in the Ohio River valley, driving an electric generator as it operates between 1870°C and 430°C. (a) What is its maximum theoretical efficiency? (b) Its actual efficiency is 42.0%. How much mechanical power does the engine deliver if it absorbs 1.40 x 105 J of energy each second from the hot reservoir.Question 6 A heat engine takes 457 J of energy from a hot reservoir and dumps 225 J of energy to its cold reservoir. What is the efficiency of this heat engine? O 41 O 51 O.69 O 14 O 17 Question 7 A pressure of 200 KPa is equivalent to which of the following? O 200,000 N/cm^2 O 2,000 N/cm^2 20 N/cm^2 O 0.2 N/cm^2 0.02 N/cm^2
- A(n) 3.3-kg block of aluminum is heated from 30°C to 70°C at atmospheric pressure. (a) Find the work done by the aluminum.? J(b) Find the amount of energy transferred to it by heat. ? J(c) Find the increase in its internal energy. ? JE14 An engineer designs a heat engine using flat-plate solar collectors. The collector deliver heat at 72°C and the engine releases heat to the surroundings at 33°C. What is the maximum possible efficiency of this engine?One of the most efficient engines ever built is a coal-fired steam turbine engine in the Ohio River valley, driving an electric generator as it operates between 1,870°C and 430°C. (a) What is its maximum theoretical efficiency? % (b) Its actual efficiency is 42.0%. How much mechanical power does the engine deliver if it absorbs 1.35 x 105 J of energy each second from the hot reservoir? kW
- The ice maker inside a refrigerator makes ice cubes at 0.0°C from water that is at 14.2°C when it first enters the ice maker. If this machine is rated at 184 W and has a 3.26 coefficient of performance, what is the maximum amount of ice it can produce in a 24 hour period without any interruption or stoppage? Assume that the ice maker works just like a refrigerator. The specific heat of water is 4184 J/(kg · °C), and the latent heat of fusion of ice is 33.4 x 104 J/kg. kg Additional Materials B Reading CS Scanned with CamScanner TutorialSteam locomotives have an efficiency of 14.0% and operate with a hot steam temperature of 375°C. (a) What would the cold reservoir temperature (in °C) be if this were a Carnot engine? 322.5 X °C (b) What would the maximum efficiency of this steam engine be if its cold reservoir temperature were 150°C? 60 X %A large electrical power station generates 1400 MW of electricity with an efficiency of 31 %. a) How much heat does the power station need to generate this amount of electricity in one day? Qn = b) How much heat is exhausted to the environment in one day? Qc = J c) The exhaust heat is transferred to the ambient air at 15 °C. What is the change in entropy of the surrounding air in one day? AS = J/K %3D d) The heat driving the generators is in the form of superheated steam at 260 °C. If a Carnot engine had been used instead, what would it's efficiency be? Efficiency = e) How much work was lost (left undone) because a Carnot engine was not used? WCarnot Wactual = %3D
- A particular condominium uses a heat pump with a coefficient of performance of 3.85 to heat its interior during cold weather. The heat pump operates with a power consumption of 6.85 × 103 w. (a) How much energy (in J) does it deliver into a home during 6 h of continuous operation? (b) How much energy (in J) does it extract from the outside air? Need Help? Read ItYou are hired to build a geothermal power plant that absorbs heat from a hot water spring and discards heat into the surrounding air, which is at a temperature of 17°. The plant is designed for a maximum (Carnot) efficiency of 0.21. What is the temperature, in degrees Celsius, of the hot water gushing from the spring? If the rate of energy supplied to the plant by the hot-water source is 4.6 kW, what is the plant’s maximum rate of power output, in kilowatts?A diesel engine has efficiency 0.180. (a) In order for this engine to do 1.24 * 10^4 J of work, how many joules of heat must it take in? (b) How many joules of this heat is discarded?