Block of copper at at initial temperature

Assignment Help Mechanical Engineering
Reference no: EM13708157

 A 25-kg block of copper at at initial temperature of 150 C equilibrates with 0.79 kg of liquid water at an initial temperature of 20 C in an insulated tank. If the average specific heat of copper can be taken to be 0.395 kJ/kg.K, determine the final temperature

Reference no: EM13708157

Questions Cloud

Maximum normal stress and the maximum shear stress : A thin walled tube with closed ends has an inside radius of 80mm and a wall thickness of 6 mm. It is subjected to an internal pressure of 20 MPa, a torque of 60 kN*m, and an axial compressive force of 200 kN. Determine the maximum normal stress and t..
Determine the volumetric flow rates at the inlet and exit : Refrigerant 22 enters an insulated compressor operating at steady state as saturated vapor at - 16 C with a mass flow rate of 1.5 kg/s. Refrigerant exits at 7 bar, 70 C. Changes in KE and PE from inlet to exit can be ignored. Determine: (a) the volum..
Calculate displacement-velocity-acceleration for assembly : A certain piston cylinder assembly has a stroke of 85mm, a connection rod length of 130 mm and a piston pin offset of 2mm. Calculate the displacement, velocity and acceleration of the assembly operating at 2200 RPM. If the same configuration is used ..
Drip irrigation problem : Drip irrigation is a means of getting water directly to growing plants with very little waste. One method uses a large-diameter polyethylene "mother" tube (10-15 mm i.d.) from which lead many small diameter polyethylene feeder tubes, called drippers,..
Block of copper at at initial temperature : A 25-kg block of copper at at initial temperature of 150 C equilibrates with 0.79 kg of liquid water at an initial temperature of 20 C in an insulated tank. If the average specific heat of copper can be taken to be 0.395 kJ/kg.K, determine the final ..
The raw material price and consumable price : Within the last month, the raw material price and consumable price combined has increased by 5.5%. If the throughput was 5 parts/hour estimates the future throughput that has to take place in order to maintain a constant production cost. Consider the..
Compressor is employed to compress gas : A compressor is employed to compress gas flowing steadily through it. The gas enters the compressor at a temperature of 16°C, a pressure of 100 kPa, and with an enthalpy of 391.2 kJ/kg. The gas leaves the compressor at a temperature of 245°C, a pre..
Buoyant device used for measuring specific weight of liquid : A hydrometer is a buoyant device used for measuring the specific weight of a liquid. A weighed glass bulb floats below the surface with a graduated stem extending above the surface. The position of the fluid level on the steam corresponds to the spec..
Determine the final pressure and the quality-boundary work : A piston-cylinder device initially contains 0.15-kg steam at 3.5 MPa, superheated by 5C. Now the steam loses heat to the surroundings and the piston moves down, hitting a set of stops at which point the cylinder contains saturated liquid water. The c..

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  A 25kg steel tank having a volume capacity of 250 litres

a 25kg steel tank having a volume capacity of 250 litres is filled with liquid water at room temperature. what is need

  Specify the boundary conditions at 0degrees 180deg

consider the following single-dwell cam specificationrise segment 0 to 20 mm in 180 degreesdwell segment at 20mm

  Niobium forms a substitution solid solution with vanadium

Niobium forms a substitution solid solution with vanadium. Compute the number of niobium atoms per cubic centimetre for a niobium–vanadium alloy that contains 27 wt% Nb and 73 wt% V. The densities of pure niobium and vanadium are 8.57 and 6.10 g/cm3,..

  What would your answer be if the convection heat transfer

it is well known that wind makes cold air feel much colder as a result of the wind-chill effect which is due to the

  Air enters a compressor operating at steady state

Air enters a compressor operating at steady state at 1 atm. with a specific enthalpy of 290 kJ/kg and exits at a higher pressure with a specific enthalpy of 1023 kJ/kg. The mass flow rate is 0.1 kg/s. If the compressor power input is 77 kW. Neglect f..

  A compressor is operating in a continuous steady-state

a compressor is operating in a continuous steady-state manner to produce a gas a temperature t2 and pressure p2 from

  Determine the temperature of the insulated surface of the

consider a large plane wall of thickness l 0. 5 m. the wall surface at x 0 is insulated while the surface at x l is

  Explain with clear reference to structural mechanisms and

magneto is seeking to produce a new helmet using a deep drawing process in which a sheet of 3103 aluminum will be

  Neglect the size of the limb

, determine the speed of the boy at the instant = 4 . Neglect the size of the limb. When = 0, = 8 so that and are coincident, i. e., the rope is 16 long.

  A game consists of tossing disks onto a table marked in

a game consists of tossing disks onto a table marked in squares of side a. if the disk does not touch any line or edge

  A vacuum cleaner is plugged into a 1200-v socket and uses

a vacuum cleaner is plugged into a 120.0-v socket and uses 3.6 a of current in normal operation when the back emf

  The 2kg block a and the 5kg block b are initially at rest

the 2kg block a and the 5kg block b are initially at rest on the inclined plane as shown. all surfaces in this system

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd