1. A gas releases 35 J of heat as 84 J of work wasdone to compress it. Calculate the change inenergy.2. What is the work done by a system when itabsorbs 47 J of heat and gain 12 J of energy?3. How much heat is released by a system when 45J of work is done on it to decrease its energy to 23J?4. Suppose a woman does 500 J of work and 9500 Jof heat transfer occurs into the environment in theprocess. What is the decrease in her internalenergy, assuming no consumption of food?5. A thermodynamic system undergoes a process inwhich its internal energy decreases by 500 J. If atthe same time 220 J of work is done on the system,find the thermal energy transferred to or from it.

As per the guidelines of Bartleby we are subjected to solve only one question at a time. Please…

Answered: 1. A gas releases 35 J of heat as 84 J…

Engineering

Mechanical Engineering

1. A gas releases 35 J of heat as 84 J of work was done to compress it. Calculate the change in energy.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: The recommended sintering time for a pressed part is 20 min. The sintering chamber of the…

A: Given: time = 20 min length = 4m total pieces = 15 pc on 1 m To find: (a) speed of the conveyor (b)…

Q: Sketch a simple part that can be green sand or injection molded. Sketch at least one view of the…

A: introduction; casting process are used for getting desired dimensional object. in this process…

Q: 5. Linear Momentum. Water flows into a horizontal (gxgy = 0) piping section at Pg₁ = 200 kPa,…

A: Given: Pg1=200 kPaPg2=Pg3=0A1=5 cm2A2=0.5 cm2A3=1 cm2 To determine: a)V1,V2,V3 b) Rx, Ry

Q: 5 non-concurrent forces are acting on two rings connected by a line that resulted in equilibrium.…

Q: 80 kg of aluminum is to be heated to a pouring temperature of 750°C. The unit melting and pouring…

A: Given data: The energy required to melt the aluminum to the poring temperature can be determined as…

Q: Determine the weight of the air in Newton contained in a room whose dimensions are 6 ft x 6 yards x…

A: Given data: V=6 ft x 6 yards x 8 mρ=1.16×10-5 kg/in3 Need to determine the weight of the air.

Q: An ice maker operating at steady state makes ice from liquid water at 32°F. Assume that 144 Btu/lb…

Q: Consider the Atwood's machine given below: m₂

Q: = Q8. The 3.1-kg, uniform crate starts from rest to slide down the inclined surface. If the…

A: Given data:- Mass of the crate =3.1 kg μk=0.12 g=9.81 m/s2 and S=2.7 m To find:- Work done by…

Q: A cantilever beam with a uniform flexural rigidity (EI=200*10^6 N.m2) is loaded with a concentrated…

A: Given data as per the question Flexural rigidity of the beam =200×106N/m2 Area of bending moment…

Q: FIND THE FORCES IN JOINT A 140 x 140 SPF No.1 Joint A 900 600 1000 38 x 140 SPF No.1/No.2 (Aucune…

A: Given: mass of the man→m=130 Kg so the weight of the man→W=mg=130×9.81=1275.3 N Because due to…

Q: 4.12 Calculate the force in cable AB and the angle 0 for the su port system shown. A 0 B W F = 100…

Q: 2.

Q: A power cycle consisting of the three processes: Process 1-2: Constant volume to P2 Process 2-3:…

Q: 3. The bar shown rotates about the z-axis. Find the velocity and accleration of point P for the…

A: Given: Angular acceleration of the bar: →α=4 rad/s2 (clockwise) Angular velocity of the bar:…

Q: 3.75 Three lb of water is contained in a piston-cylinder assembly, initially occupying a volume V₁ =…

Q: 2- explain Diesel Engine Main Parts :

Q: Problem 1 Determine the Moment of Force (MA) at point A created by force: a) F = 100 N and P = 150 N…

Q: ■6-46. The truss supports the vertical load of 600 N. Determine the force in members BC, BG, and HG…

Q: Given velocity fieldV(x,y,z,t) = (5xy² + t)i + (2z + 8)j +18km/s, with x,y,z in meters and it in…

Q: All of the following are components of an injection molding machine except.: Screw Barrel Nozzle O…

A: Introduction Injection molding is used to create a variety of extensively used products, like…

Q: Use Force Distance method to find the moment of each force shown about x, y, and z axes. Then find…

Q: At time t = 14 s, the velocity of a particle moving in the x-y plane is v = 0.14i + 2.87j m/s. By…

Q: The rigid bar AB shown below is supported by a steel rod AC having a diameter of 20 mm, and a block.…

A: Given data Diameter of rod AC = 20 mm Distributed load on AB = 4 kN/m Find the axial normal stress…

Q: ancellation and do not use shift solv

A: Given-Information:- ρ = 875 kg/m3∆P = p1-p2=78 psi = 6032.91 kN/m2d1 = 25.4 mm =0.0254 md3 =0.20…

Q: A 300-lb iron casting, initially at 1050°F, is quenched in a tank filled with 2121 lb of oil,…

Q: 5) If the block has mass of 35 kg and its initial velocity is 2.7 m/s (at x = 3 m), determine the…

A: Given data: m=35 Kgx=3 mintial velocity v=2.7 m/sg=9.81 m/sk=5 KN/my=0.25x2

Q: If in a tensile loading application, the factor of safety for one member is set as FS = 2.2 based on…

A: Given data: FS=2.2σfail=614 MPa Need to determine the allowable stress for member σallow.

Q: Q6. As shown in the image below, the 55-kg skier slides down the smooth slope for which the shape is…

Q: cantilever beam with a uniform flexural rigidity (EI=200*10^6 N.m2) is loaded wit ncentrated force…

Q: Q12. As shown in the image below, the 38-kg block A and the 45-kg block B connected by the…

Q: Q10. As shown in the image below, the ball is kicked from point A with the initial velocity VA = 14…

A: Given data Velocity = 14 m/s Theta = 37° Find the magnitude of maximum height

Q: As shown in the figure below, a reversible power cycle receives energy QH by heat transfer from a…

A: Given data:- Reversible power cycle (Carnot engine)

Q: (a) For the iron casting and oil as the system,determine the final equilibrium temperature, in °F.…

A: It is given that, mass of iron casting (miron) = 30 lb Initial temperature of iron casting (Ti,iron)…

Q: Q5/ In refrigeration system uses R717, the evaporator temperature is -20°C and the condenser…

Q: Consider a reducer with inlet and outlet diameters of D1 and D2, respectively. The respective…

A: Law of conservation of momentum: According to this law, " the rate of change of linear momentum of…

Q: A spherical steel tank of 22 m diameter contains gas under a pressure of 300 kPa. The tank consists…

Q: Calculus A semicircle plate 5 ft in diameter sticks straight down into freshwater with the diameter…

A: Given data Diameter of semicircle plate = 5ft Density of water = 62.4 lb/ft3

Q: 3. For this series of 5 questions, a block is released from the position shown with a certain…

Q: A composite wall made of two materials consists of a 10 cm thick layer of brick (kb=0.15 W/m/K) and…

A: Given:Thickness of layer of brick, Lb=10 cm=0.1 mThermal conductivity of brick, kb=0.15 W/m.KThermal…

Q: 3 m A 3 m B 1 m 2 1.5 m X 0.38 m 0.08 m. B 0.16 m Detail of the stake at B

A: Given,

Q: 3. Water flows through a pipe at 5 L/s. If gage pressures of 12.5 kPa, 11.5 kPa, and 10.3 kPa are…

Q: 6. Linear Momentum. Water flows out of a nozzle as a horizontal cylindrical jet of area Aj=0.002 m²…

A: Given: Aj=A2=0.002 m2A1=0.01 m2Pg1=2 kPa To find;a) Vjb) Rxc) h

Q: The rigid bar AB shown below is supported by a steel rod AC having a diameter of d mm and a block.…

Q: st be included if the average

A: Given-Information:- Time, t = 8 seconds To-Determine:- Average Velocity, Vavg = m/s,

Q: = Q13. As shown in the image below, the 86 kg-crate is initially at rest, and at a distance d = 8.2…

A: The frictional force acting on the crate can be determined as shown below.

Q: Referring to the reversible heat pump cycle shown in the figure, p₁ = 14.7 lb/in², P4 = 57.4 lb/in²,…

Q: 3.4 A 300-N force is applied at A as shown. Determine (a) the moment of the 300-N force about D, (b)…

Q: Use the following information for the system shown below: 1. The object (T-beam) is shown in black.…

Q: pl-diagram on the right shows a cycle of a heat engine that uses 0.250 mol of an ideal gas with =…

Question

1. A gas releases 35 J of heat as 84 J of work was
done to compress it. Calculate the change in
energy.
2. What is the work done by a system when it
absorbs 47 J of heat and gain 12 J of energy?
3. How much heat is released by a system when 45
J of work is done on it to decrease its energy to 23
J?
4. Suppose a woman does 500 J of work and 9500 J
of heat transfer occurs into the environment in the
process. What is the decrease in her internal
energy, assuming no consumption of food?
5. A thermodynamic system undergoes a process in
which its internal energy decreases by 500 J. If at
the same time 220 J of work is done on the system,
find the thermal energy transferred to or from it.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Given data

VIEW

Final solution

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

1. In a turbine, steam enters with an enthalpy of 1275 Btu/lbm and leaves with an enthalpy of 1115 Btu/lbm. The transferred heat is 13 Btu/lbm. Find the turbine work in hp where the steam flow rate is 5 lbm/sec? 2. During a steady flow process, the pressure of the working substance drops from 200 to 20 psig, the speed increases from 100 to 800 fps, The internal energy of the open system increases by 15 Btu/lbm, and the specific volume increases from 1 to 10 ft3/lb. The heat lost of the open system is equivalent to 1 kW. Determine the work in hp for a mass flow rate of 12 lbm per min.
A car can have a turbodiesel with 50 mpg and 4-cylinder gasoline engine with 29 mpg. Find out prices for diesel and gasoline and calculate how much it would cost you to drive 100 miles on each of the fuels.
What is the efficiency of a Diesel Engine if the heat added is 19 BTU and heat rejected is 9 BTU?
a.) What is the maximum thermal efficiency for a heat cycle with TC = 500°R and TH = 700°R? b.) Now, what is the maximum coefficient of performance for a heat cycle with TC = 500°R and TH = 700°R?
2. A waste heat recovery boiler produces 4.8MPa (dry saturated) steam from 103 deg C feedwater. The boiler receives energy from 6 kg/s of 945 deg C dry air. After passing through a waste heat boiler, the temperature of the air has been reduced to 343 deg C. How much steam in kg is produced per second? (Hint: Approximate Enthalpy of Water in kJ/kg = Cp(t); where t is in 0C) @4.8 MPa dry saturated: h = 2796 A. 1.8 C. 1.53 B. 2.98 D. 1.54
Air is drawn into a gas turbine working on constant pressure cycle at 1 bar, 21 ℃ and compressed to 5.7 bar. The temperature at the end of heat supply is 680 ℃. Taking expansion and compression to be adiabatic where k = 1.4, calculate the heat energy supplied per kg at constant pressure. Select one: Air is drawn into a gas turbine working on constant pressure cycle at 1 bar, 21 ℃ and compressed to 5.7 bar. The temperature at the end of heat supply is 680 ℃. Taking expansion and compression to be adiabatic where k = 1.4, calculate the heat energy supplied per kg at constant pressure. a. 489 kJ/kg b. 501 kJ/kg c. 472 kJ/kg d. 389 kJ/kg a. 489 kJ/kg b. 501 kJ/kg c. 472 kJ/kg d. 389 kJ/kg
Explain term exergy. How this term used in engine and refrigerator?
The maximum thermal efficiency (in %) possible for a power cycle operating between 1323 °F and 217°F is:
What does the conservation of energy state?
Water vapor enters a compressor at 100 kPa pressure, 100°C temperature and 1.1 kg/s mass flow rate and exits at 500 kPa pressure and 500°C temperature. Since the heat transfer from the compressor's surface to the environment is 75 kW and the boundary temperature between the compressor and the environment is 100°C,a) Find the exergy of the fluid at the inlet of the compressor (kW).b) Find the exergy of the fluid at the compressor outlet (kW).c) Find the second law efficiency of the compressor.d) Find the exergy destroyed (Exergy extinction) (kW).Note: Changes in kinetic and potential energies will be neglected and T (K) = 273 + °C will be taken. The pressure of the environment is 100 kPa and the temperature is 25°C.
A diesel power station has a fuel consumption of 0.37 lb/ kWh. The calorific value of fuel being 30,000 Btu/lb. Determine the engine efficiency if the generator efficiency is 95%?
A commercial refrigerator is to cool eggplants from 26 to 5 °C at a rate of 380 kg/h. The power input to the refrigerator is 4.5 kW. Determine (a) the rate of cooling, (b) the COP, (c) the exergy of the heat transferred from the low-temperature medium, and (d) the second-law efficiency and the exergy destruction for the cycle. The specific heat of eggplant above freezing is 3.92 kJ/kg.°C.