nd Carnot efficiencies.
Q: Q68 A single cylinder oil engine has a Compression ratio of 1081 The specific fuel cons umption is…
A: Given data The compression ratio of the single-cylinder engine is r = 10 The specific fuel…
Q: Irreversible process is one that cannot be reversed by means of small changes in theb environment.…
A: Irreversible process is that process which cannot be reversed in any manner. If we make a small…
Q: Determine the efficiency of a Carnot engine if the work it does is 9.00 times less than the heat…
A: Efficiency of Carnot engine is, η=work doneheat flow =wQ
Q: Topic: ENTROPY & THE SECOND LAW OF THERMODYNAMICS Find the change in entropy when 1.25 kg of steam…
A: Given data, Mass of the steam = 1.25 kg Initial temperature = 100 oC Final temperature = 50 oC When…
Q: Calculate the net work output (in ) of a heat engine following path ABCDA in the figure, where v,-…
A:
Q: Air is compressed isothermally from 13 psia and 908F to 80 psia in a reversible steady-flow device.…
A:
Q: What is the increase of in entropy when 3.00 kg of ice at 0ᵒC melt to form water at 0ᵒC?
A: Latent heat of ice = 80 cal/K Mass of ice = 3 kg = 3000g T = 273K In change of phase absorbed heat =…
Q: Determine the NPSH availalbe when a pump draws gasoline at 30°C (sg-0.65) from an underground tank…
A: To determine the NPSH (Net Positive Suction Head) available, we need to use the following formula:…
Q: A single-stage single acting air compressor takes air in at 1 bar & delivers at 5.5 bar. Work done…
A: Let W denotes the work done in each cycle, n denotes the r.p.s. of the compressor, and P denotes the…
Q: Calculate the efficiency of a thermal machine whose fluid completes the cycle represented in the…
A:
Q: obtain an expression for work done during an adiabatic process?
A: Consider the following adiabatic process.
Q: A heat engine operates between a reservoir at 28°C and one at 439°C. What is the maximum efficiency…
A: Tcold = 28 Degree Celsius = 28 + 273 = 301 K Thot = 439 degree celsius = 439 + 273 = 712 K
Q: When a system is taken from state i to state f along path iaf in the figure, Q = 50.2 cal and W =…
A: Given, When the system is take from i to f state along iaf, Q = 50.2 cal, W =…
Q: The temperature inside a Carnot refrigerator is4.60°C. What is the high temperature, Th, in Celsius…
A: Coefficient of performance of refrigerator is given by, COP = cooling effect/work input =…
Q: A heat engine with an efficiency of 38% takes in 65 kJ of heat. How much waste heat does it expel…
A: Given Efficiency η=0.38 Heat intake Q1=65kJ
Q: What is the algebraic expression for efficiency of carnot engine in terms of T_h and T_c? T_h = hot…
A:
Q: QI (ii) Figure QI (ii) a residential heat pump plant has a coefficient of Performance 2.4. Calculate…
A: Write the expression for the coefficient of performance of the heat pump. Here, HE is the heating…
Q: Explain about Non-conservative Forces and Internal Energy in a Tire.
A:
Q: (a) Calculate the net work output of a heat engine following path ABCDA in the figure below. W ABCDA…
A: (a) Net work output of a heat engine following path ABCDA can be calculated by,…
Q: Describe Carnot cycle and derive an expression for its efficiency.
A: Carnot Cycle is considered as an ideal cycle.It is a reversible cycle ,it has four processes and all…
Q: (10° N/m®) 2.6 A 2.0 1.0 D 0.6 1.0 4.0 V (10°m²) B.
A: Solution:
Q: The coefficient of performance of the heat pump used as a cooler (illustrated below) is x-3. What is…
A: Given: The coefficient of performance is 3.
Q: If an engine operates between 269°C and 26°C, what is its maximum thermodynamic efficiency (as a…
A:
Q: An engine takes 9219 J and does 1715 J of work each cyle while operating between 690°C and 400°C.…
A: Given: The hot reservoir temperature is, Th=690°C=963.15 K. The cold reservoir temperature is,…
Q: Problem 2. The temperature of the hot reservoir TH of a Carnot heat engine is 440 K. What must the…
A: Given temperature of hot reservoir is TH=440 K Efficiency is e=0.38
Q: Which of the following is the carnot efficiency?
A:
Q: A refrigerator is to maintain eatables kept inside at 90C. If room temperature is 360C, calculate…
A: Given:Temperature inside the refrigerator(T1)=90°C=363kRoom temperature(T2) =360°C=633k
Q: P 6P A atm 3P atm -V Vref 2V ref Cycle X
A:
Q: When a system is taken from state i to state f along path iaf in the figure, Q = 51.4 cal and W =…
A: The question contains 5 sub-parts. As per our policy, we are supposed to answer the first three.…
Q: 58.'A gas cylinder system similar to that described in this sectio has a volume of 1.80 X 10-3 m³ at…
A: Given: The intial volume and pressure is 1.8x10-3 m3 and 1.01x105 Pa. The final volume and pressure…
Q: A HEAT PUMP DELIVERS HEAT AT A RATE OF 7.81KW FOR 10 HOURS. IF ITS COEFFICIENT OF PERFORMANCE IS…
A: Given: COEFFICIENT OF PERFORMANCE IS 6.85 k = 6.85 A HEAT PUMP DELIVERS HEAT AT A RATE OF 7.81KW…
Q: Which of the following is the Carnot Efficiency A)Work Output / Work Input B) (Thot – Tcold) /…
A: Required: The efficiency of the Carnot heat engine
Q: A refrigerator operates between temperatures of 315 and 279 K. What would be its maximum coefficient…
A: η=QcW=QcQH-QC=Qc/QH1-QCQH
Q: An ideal gas undergoes isothermal expansion that doubles the volume. What happens with the pressure?
A:
Q: A fan delivers 1.64 m3/s of air at static pressure of 30mm water through a duct with a diameter of…
A: Given,
Q: As an ideal gas expands at constant pressure from a volume of0.74 m3 to a volume of 2.3 m3 it does…
A: Expression for work done W=PVf-Vi Rearrange in term of P P=WVf-Vi
Q: One mole of air undergoes a Carnot refrigeration cycle. The hot reservoir is at 25o C and the cold…
A: The equation for the coefficient of performance of Carnot refrigeration cycle is
Q: 4. Derive the coefficient of performance of a Carnot Engine in cooling mode. COP (cooling mode) Te…
A:
Q: What is the efficiency of a Carnot engine whose isothermal process happen at 30.0 degC and 218 degC?
A:
Q: The pV-diagram in Fig. shows a process abc involving0.450 mol of an ideal gas. (a) What was the…
A: Given data n=0.45 mole∆U=15 kJ
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