A refrigerator has the refrigerant factor 3 and draws 120 W in electrical energy. How much heat remove from the refrigerator compartment for 24 hours? 31.1 MJ 10,4 MJ 3,5 MJ OOO

Q: An engine has a hot reservoir that contains 20 MJ of heat energy at 400º c, and a cold reservoir…

A: Given that:QH=20 MJTH=400°CQC=15 MJTC=5°C

Q: 27. This problem compares the energy output and heat transfer to the environment by two different…

A: In the diagram, QS and QR is the heat supplied and heat rejected form the power stations…

Q: f work is done on a system as it undergoes compression. What is the total amount of energy…

A: 1.GivenWork is done on the system , W=-360 JIncrease in internal energy, ∆U=180 J

Q: How much heat transfer occurs to the environment by an electrical power station that uses 1251014 J…

A: efficiency of the machine= 100% heat provided = Qin= 1.25x1014 J heat transferred to the environment…

Q: A solid cylindrical bar conducts heat at a rate of 133 w from a hot to a cold reservoir under…

A:

Q: 31.0 m of water is converted into 1671 m³ of steam at atmospheric pressure and 100°C temperature.…

A: Using first law of thermodynamics, ∆U=∆Q-W

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

A:

Q: 46. GO Engine 1 has an efficiency of 0.18 and requires 5500 J of input heat to perform a certain…

A:

Q: Suppose a woman does 600 J of work and -9400 J of heat transfer occurs into the environment in the…

A: Work, W = 600 JHeat, Q = -9400 JEfficiency, Eff = ?

Q: You want to heat your oven to 400°F. Given that your oven has a surface area of 1m2, about how much…

A: Given  Surface area of oven(A)= 1 m2 Temperature of oven (T) = 400°F We want to calculate power…

Q: BMR Basal Metabolic Rate is the rate of heat energy generation when a person is at rest. Some diet…

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: A hot rock ejected from a volcano’s lava fountain cools from 1100º C to 40.0º C , and its entropy…

A: Given information: Here, Ti and Tf is the initial and the final temperature of the rock and ΔS is…

Q: A 1 500-kW heat engine operates at 25% efficiency. The heat energy expelled at the low temperature…

A:

Q: Suppose 150 Joules of work is done on a system and that 300 Joules of heat are delivered to the…

A: Given data: Work done on the system = 150 J Heat added to the system = 300 J Required: Change in…

Q: C A m M B

A: The pulley system consists on mass A and B  mass A, m, MA=4 Kg mass B, MB=6 Kg

Q: What is the best possible coefficient of performance COPref for a refrigerator that cools an…

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: A heat engine takes in 2500J and does 1500J of work.   a) How much energy is expelled as waste?…

A: Given Data: The heat supplied to the engine is: Qs=2500 J The work produced by the engine is: W=1500…

Q: A 32% efficient electric power plant produces 900 MJ of electric energy per second and discharges…

A:

Q: A thermodynamical system performs work and at the time exchanges energy to the outside environment…

A: First law of thermodynamics: The way of expressing the first law of thermodynamics is that any…

Q: For the heat pump (used for heating) illustrated below, what is its coefficient of performance for…

A: Indicator diagram between P and V for a cyclic -process.Concept Work done in cyclic process = Area…

Q: When the first law of thermodynamics is applied to a system, the Qand Wstand for what? Select one: O…

A: When first law of thermodynamics is applied to the system then ∆U = Q + W Here ∆U is the change in…

Q: An electric power plant uses energy from burning coal to generate steam at 450oC. The plant is…

A: Source temperature,  Sink temperature,  Head added,

Q: B. A/ How m of work? B/ How mu

A: Heat Engine A heat engine is a device that is used to convert heat energy into mechanical energy.  A…

Q: The Mach 5 racer driven by Speed Racer has an engine that pulls 14250J of heat energy from a high…

A:

Q: A gasoline engine takes in 1.61 * 10^4 Jof heat and delivers 3700 J of work per cycle. The heat is…

A: Given:W=3700JQH=1.61×104 J