A thermal machine performs the ABCA reversible cycle with 9.0 mols of an ideal gas, as shown in the figure. The AC process is adiabatic. The temperatures at points A and B are 300k and 500k, respectively. The volume at point C is 0.20m³ A constant γ(range) of gas is 1.60. a)What is the thermal efficiency of this machine? b)Let T_Q and T_F be the temperatures of the hot and cold reservoirs, respectively. What conditions on T_Q and T_F guarantee that the machine works?

A thermal machine performs the ABCA reversible cycle with 9.0 mols of an ideal gas, as shown in the figure. The AC process is adiabatic. The temperatures at points A and B are 300k and 500k, respectively. The volume at point C is 0.20m³ A constant γ(range) of gas is 1.60. a)What is the thermal efficiency of this machine? b)Let T_Q and T_F be the temperatures of the hot and cold reservoirs, respectively. What conditions on T_Q and T_F guarantee that the machine works?

Similar questions

A Carnot heat engine operates with an efficiency η=0.5 between a hot reservoir at temperature T1 and a cold reservoir at temperature T2=300 K. Calculate the temperature T1 of the hot reservoir. Select one: a.T1=150.0 b.T1=300.0 c.T1=900.0 d.T1=600.0
P Example of calculation of work P = 1 Atm V%= 1 litre iii ii P V V,12 V In this cycle the system, which is an ideal monatomic gas, undergoes first isothermal (i) then adiabatic (ii) compression steps, each of which halve the volume, then returns to its starting point via first isothermal (iii) and then adiabatic (iv) expansions, each of which double the volume. How much work is done by the system during the cycle if P, is 1 atmosphere and V, =1 litre?
Consider a heat engine with a cycle described by the figure, with the volume and pressure at points A, B, C, and D given below. VA = 0.95 × 10-3 m3VB = 3.5 × 10-3 m3PA = 2.65 × 106 N/m2PB = 2.37 × 106 N/m2PC = 0.75 × 106 N/m2PD = 1.29 × 106 N/m2 a)Calculate the net work output, in joules, of the heat engine following path ABCDA.
One mole of an ideal gas is used as the working substance of an engine operating in the cycle shown in the figure below. BC and DA processes are reversible adiabatic.a) Is the gas monoatomic, diatomic or triatomic?b) What is the efficiency and engine?
Suppose a heat engine design makes a square on a PV diagram, using a monatomic gas. The high pressure is 3P and low pressure is P. The high volume is 3V and low volume is V. What is the efficiency of the heat engine?
Consider a refrigerator undergoing a cycle. a. What is the maximum coefficient of performance that an ideal refrigerator can achieve if it operates between thermal reservoirs at 150K and 220K? b. Is it possible for a refrigerator operating between the same two temperatures of part (a) to have heat transfer in to the cycle of 34 kJ and heat transfer out of 42 kJ? Why or why not?
Problem #8 In one cycle of an engine, 1.80 kJ of energy is absorbed from a hot reservoir at 280°C, and 1.15 kJ of energy is expelled to a cold reservoir at 25.0°C. a) How much work (in J) is done by the engine in each cycle? b) What is the engine's efficiency? c) How does this compare to the Carnot Efficiency?
Steam locomotives have an efficiency of 15.0% and operate with a hot steam temperature of 475°C. (a) What would the cold reservoir temperature (in °C) be if this were a Carnot engine? °C (b) What would the maximum efficiency of this steam engine be if its cold reservoir temperature were 150°C? % Additional Materials B Reading ds Scanned with CamScanner
A refrigerator has a coefficient of performance of K=2.2 Each cycle, it absorbs 3.35×104 J of heat from the cold reservoir. The refrigerator is driven by a Carnot engine that has an efficiency of e=0.5. A)How much mechanical energy is required each cycle to operate the refrigerator? B)During each cycle, how much heat flows into the Carnot engine?