(a) Rowing your shell to work one day, you give off 4.8 * 105J of heat and do 6.2 * 105J of work. What is the changein your internal energy? (b) On your return trip, you give off 3.9 * 105J of heat and your internal energy decreases by5.1 * 105J. How much work did you do on the return trip?

Q: The heat machine receives 1200 J of heat fvom high-temperature heat source and release the heat of…

A:

Q: A 2000kg car is advertised that it can go from rest to 30m/s, drives 100km, and 3000m in height on 1…

A: Part (a): The 1 gram of gasoline gives 5×104 J of heat energy. Hence, the total heat energy (Q)…

Q: Suppose a woman does 500 ) of work and 9500 J of heat transfer occurs into the environment in the…

A:

Q: An electrical power station requires 1.1 × 1014 J of heat transfer into the engine and has an…

A:

Q: A gas in a closed container is heated with 10 J of energy in an isochoric process. Then, in an…

A:

Q: You perform maintenance on an engine, increasing its efficiency by 6.84 %.  How much more work is…

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: Let n denotes the frequency, w denotes the work done in each cycle, and P denotes the power output…

Q: J of heat are added to the ideal gas, initially at a temperature of 765.50 K. What is the work of a…

A: Using first law of thermodynamics ∆Q=∆U+∆W. ∆Q= 500 joule ∆U= 0. Because temperature is not changing…

Q: Your kitchen is at a temperature of 301.5 K.  Using 2771 J of work, how much heat can a Carnot…

A: solution as

Q: When you skid to a stop on your bike, you can significantly heat the small patch of tire that rubs…

A:

Q: Rocky spends all the afternoon hours watching sports on cable TV. In the process, he does 1118 J of…

A: Rocky spends all the afternoon hours watching sports on cable TV. In the process, he does 1118 J of…

Q: The air inside a bicycle tire pump has 160J of work done on it as 56.4J of heat is added to it. What…

A:

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

A:

Q: A heat engine exhausts 1100 J of heat in the process of doing 400 J of work. What is the heat input…

A: Given: Heat energy expelled by the engine=QC=1100 [J] Work done by the engine=W= 400 [J]

Q: A pearl diver fills his lungs with 5.25 LL of air at normal atmospheric pressure and then dives to…

A: Initial volume, V1 = 5.25 L => V1 = 5.25*10-3 m3 Initial pressure, P1 = 1 atm => P1 = 101325…

Q: A model steam engine of 1.00kg mass pulls eight cars of 1.00kg mass each. The cars start from rest…

A: Mass of engine, M = 1 kg  Mass of each car, M'=1 kg  Net mass of system = Total mass of 8 cars and…

Q: A heat engine exhausts 3 200 J of waste heat while performing 1 500 J of useful net work. What is…

A: Given data: Work done W=1500J Heat exhausted QC=3200J

Q: A system does 2.00 x 10° ) of work while 6.20 x 10 ) of heat transfer occurs to the environment.…

A: Given : Work done by the system (W) = 2 x 108 J Heat transfer to the environment (Q) = -6.2 x 108 J…

Q: A soft drink manufacturer clains that a new diet drink is "low Joule." The label indicates the…

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 system does 1.95 × 108 J of work while 7.5 × 108 J of heat is transferred from the system to the…

A: Given data:  Work done by the system (W) = 1.95×108 J Heat transferred from the system to the…

Q: A PHYS 1510 student was working on a robotics project. The joints on the machine they were building…

A:

Q: 250 J of heat leaves the system and 355.75 J of work is done on the system. Get the change of…

A: Given value--- 250 J of heat leaves the system . 355.75 J of work is done on the system. We have…

Q: Suppose a woman does 350 J of work and 9700 J of heat is transferred from her into the environment…

A: a) The change in the woman's internal energy can be found using the first law of thermodynamics: ΔU…

Q: An arrow in a bow in a bow has 270 (J) of potential energy. Assuming 100 (J) of energy were…

A:

Q: A 65kg box is being pulled across a floor that has friction with a rope that has a tension of 50 N…

A: When multiple forces applies on a object, then splitting them is best way to solve problem. In this…

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: Ex. 57: When 0.2 kcal of heat are supplied to a gas it expands by 2.1 litres against an external…

A: To find- (1) Work done (2) Increase in internal energy Given- dQ=0.2 kcal dV=2.1 litres=2.1 x 10-3…

Q: A person can generate about 300 W of power on a treadmill. The treadmill is inclined at 2.80∘ and an…

A: Solution: Given Values, Total power output(P1) = 300 W mass (m) = 85 kg Theta = 2.8 degree Speed(v)…

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: When gasoline burns in an automobile engine, the heat released (300 J) causes the products CO2 and…

A: According to the First Law of Thermodynamics, the change in Internal Energy is equal to the…

Q: Your kitchen is at a temperature of 303.44 K.  Using 2362 J of work, how much heat can a Carnot…

A: solution as

Q: In a game of football outdoors on a cold day, a player will begin to feel exhausted after using…

A: Given : ∆U = -8 × 105 J (negative because internal energy is lost before being exhausted) In part…

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: When gasoline burns in an automobile engine, the heat released (336 J) causes the products CO2 and…

A: ΔU=?q=-336 JW=-463 J

Q: How much work must be done by this heat pump to supply 2550 J of heat on a day when the outside…

A: Given data : Heat supply to heat pump is, Q=2550 J. Outside temperature is, To=253 K.

Q: Air in a balloon does 37 J of work while absorbing 88 J of heat. What is its change in internal…

A:

Q: A 220-lb athlete drinks a glass of soda (125 calories) and walks up to the top of a Library…

A: We will use first law of thermodynamics which states in terms of equation is that,…

Q: A refrigerator removes 30.0 kcal of heat from the freezer and releases 68.5 kcal through the…

A: A refrigerator is a device that works on the reverse Carnot cycle.Using energy conservation…

Q: Six grams of liquid X at 35 degrees Celsius are added to 3 grams of liquid Y at 20 degrees Celsius.…

A: The equilibrium temperature can be determined by the calorimetry’s principle as, Here, m, c, Tf,…

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.