Determine the thermal conductivity of the styrofoam

Assignment Help Physics
Reference no: EM13549442

A Styrofoam box has a surface area of 0.74 m2 and a wall thickness of 2.0 cm. The temperature of the inner surface is 5.0°C, and the outside temperature is 27°C. If it takes 8.5 h for 5.0 kg of ice to melt in the container, determine the thermal conductivity of the Styrofoam _____ W/m K

Reference no: EM13549442

Questions Cloud

Determine final temperature-estimate total change in entropy : A 120 g insulated aluminum cup at 17 C is filled with 140 g of water at 40 C. After a few minutes, equilibrium is reached. A)Determine the final temperature. B)Estimate the total change in entropy.
Refrigerator moves energy from cold to hot reservoir : A refrigerator moves energy from a cold reservoir (the inside of the refrigerator) to a hot reservoir (the kitchen), but some extra energy is required in the form of work done by some outside agent (typically a compressor motor).
Energy is exhausted to the cold reservoir : Suppose a heat engine has an efficiency of 0.201 and produces 1.09×104 J of work. How much energy is pulled in from the hot reservoir? How much energy is rejected by the engine? (This energy is "exhausted" to the cold reservoir.))
(this energy is exhausted to the cold reservoir : Suppose a heat engine pulls 3.37×104 J of work from the hot reservoir and 7.52×103 J of that energy is used to perform work. How much energy is rejected by the engine? (This energy is "exhausted" to the cold reservoir.) What is the efficiency of the ..
Determine the thermal conductivity of the styrofoam : A Styrofoam box has a surface area of 0.74 m2 and a wall thickness of 2.0 cm. The temperature of the inner surface is 5.0°C, and the outside temperature is 27°C. If it takes 8.5 h for 5.0 kg of ice to melt in the container, determine the thermal cond..
What was the final temperature of the coins : In a physics lab experiment, a student immersed 205 one-cent coins (each having a mass of 3.00g ) in boiling water. After they reached thermal equilibrium, she quickly fished them out and dropped them into 0.236kg of water at 20.0 C in an insulate..
Determine the new period of the clocks pendulum : A clock has an aluminum pendulum with a period of 1.000 s at 20.7 °C. Suppose the clock is moved to a location where the average temperature is 32.2 °C. (The linear expansion coefficient for aluminum is 2.20 10-5 °C?1.)
Calculate the acceleration of the ball : A pulley of radius 20cm and moment of inertia is suspended from a ceiling and has a long string of negligible mass wound around it. A ball of mass 1kg is connected to the string and released from rest from a height of 2m above the floor. Calculate th..
Temperature of the system consisting of the ice-water : A 40-g block of ice is cooled to ?72°C and is then added to 640 g of water in an 80-g copper calorimeter at a temperature of 27°C. Determine the final temperature of the system consisting of the ice, water, and calorimeter.

Reviews

Write a Review

Physics Questions & Answers

  Find the magnitude of the resulting magnetic field

A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.

  Find the equivalent resistance

A resistor is in the shape of a cube, with each side of resistance  R . Find the equivalent resistance between any two of its adjacent corners.

  What is the electric field at the location

Question: Field and force with three charges? What is the electric field at the location of Q1, due to  Q 2 ?

  What is the maximum displacement of the bridge deck

What is the maximum displacement of the bridge deck?

  What is the magnitude of the current in the wire

What is the magnitude of the current in the wire as a function of time?

  Blackbody

Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.

  Gravity conveyor

Illustrate the cause of the components accelerating from rest down the conveyor.

  Calculate the dc voltage

Calculate the dc voltage applied to the circuit.

  Quadrupole moments in the shell model

Quadrupole moments in the shell model

  Determine the tension in each string

Determine the tension in each string

  Introductory mechanics: dynamics

Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.

  Evaluate maximum altitude

Evaluate maximum altitude?

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