1 Verified Answer. We will also proof of carnot theorem, carnot’s refrigerator, coefficient of performance of refrigerator, definition of carnot cycle etc in detail. inside a refrigerator) divided by the work W done to remove the heat (i.e. 1. A Carnot refrigerator operates between - 19096341 1. (b) If 200 J of work done on the working substance cycle, how heat per cycle is from cold reservoir? The coefficient of performance or COP of a refrigerator is the ratio of the heat extracted from the system to the external work required for the same. A Carnot refrigerator operating between -10.0 °C and+ 30.0 °C extracts heat from the cold reservoir at the rate 100 J/s. Carnot’s theorem. The coefficient of performance, COP, of a refrigerator is defined as the heat removed from the cold reservoir Q cold, (i.e. 1 Verified Answer. Carnot refrigerator A has a 21 % higher coefficient of performance than Carnot refrigerator B. COP of a Carnot cycle depends upon the minimum and maximum temperature in the cycle.

(a) What is the coefficient of performance of the refrigerator? This seems quite the achievement and the authors state that their approach might achieve a Carnot efficiency of 75%. Coefficient of Performance – Refrigerator, Air Conditioner. A scientist say that the efficiency of his heat engine which operates at source temperature 1 2 7 ∘ C and sink temperature 2 7 ∘ C is 2 6 %, then. So, take your notebooks in you hand and get ready to study physics in an easy and sorted way. Answered A Carnot refrigerator operates between 250K and 300 K Calculate its coefficient of performance. This is … What are (a) the coefficient of performance of this refrigerator, (b) the rate at which work is done on the refrigerator and (c) the rate at which heat is exhausted to the hot side?

Similarly, we can work out the coefficient of performance for a Carnot heat pump as K P = Q h Q h − Q c = T h T h − T c. (4.7) Join now. A refrigerator operates with Carnot efficiency between temperatures −4.8 C and 32.6 C. What is its coefficient of performance? suryavanshisanika3 8 minutes ago Physics Secondary School +5 pts. Log in. The coefficient of performance of a Carnot refrigerator working between 30⁰C and 0⁰C is - NEETLab. Equation (14.5) gives the coefficient of performance of the same Carnot engine running backward as a refrigerator or air conditioner as COPCarnot R / AC = TL TH − TL = 293.15 K 473.15 − 293.15 K = 1.63 Note that the COP Carnot HP = COP Carnot R/AC + 1 as Eq. Join now. inside a refrigerator) divided by the work W done to remove the heat (i.e. the work done by the compressor). for the coefficient of performance of the ideal-gas Carnot refrigerator.

the work done by the compressor). The temperature difference between the hot and cold reservoirs is 30 % greater for B than for A.

thanks Check Your Understanding A Carnot refrigerator operates between two heat reservoirs whose temperatures 0 ℃ and 25 ℃ . Log in. (14.2) and (14.3) are also satisfied here. View Answer. A Carnot refrigerator operating between -10.0 C and 40.0 C extracts heat from the cold reservoir at the rate 300 J/s. The coefficient of performance of a (Carnot) refrigerator (in terms of temperatures) is K = Tc / (Th -Tc) where Tc and Th are the cold and hot absolute temperatures. Ask your question. If u r talking about our household refrigerator then there is no direct relation but if u consider refrigerator working on reverse carnot cycle, here the relation exists i.e. efficiency & COP (coefficient of performance) are one and the same. If the cold-reservoir temperature for refrigerator B is 150 K, what is the cold-reservoir temperature for refrigerator …

Please help!! (c) How much heat cycle is discarded to the hot reservoir? The coefficient of performance of a carnot refrigerator working between 3 0 o C and 0 C is. (14.1) requires, and that Eqs. Viewed 21k times 1 I was reading that a new type of refrigerator might reach a coefficient of performance (COP) of 10.