Define the tea in thermos, Physics

Assignment Help:

Define the Tea in Thermos?

One liter of tea at 90° C is poured keen on a vacuum-insulated container (thermos). The surface area of the thermos walls A=600 cm2. The volume among the walls is pumped down to Po~ 5.10-6 atm pressure (at room temperature). The emissivity of the thermal and the walls capacity of water C = 4.2.103 J/kg K. ignore the heat leakage through the stopper, estimate the

a) Net power transfer

b)  Time for the tea to cool from 90°C to 70°C.


Related Discussions:- Define the tea in thermos

Quantum particle confined to one dimensional box, A quantum particle confin...

A quantum particle confined to one dimensional box of width 'a' is in its first exited state. What is the probability of finding the particle over an interval of (a/2) marked symme

Electrostatics.., what is the meaning of electrostatics and what is the use...

what is the meaning of electrostatics and what is the uses of electrostatics and where is the use of electrostatics and why do we use electrostatics and derive its derivation also

Rotating a mirror and the reflected ray, Rotating a Mirror and the Reflecte...

Rotating a Mirror and the Reflected Ray Describing in which when a mirror is rotated through an angle, the reflected ray is rotated through twice that angle. You might drag th

Electronics, workind and defination and symbol of zener diode

workind and defination and symbol of zener diode

Vectors, What is the best means of solving a vector problem? By using 2 or ...

What is the best means of solving a vector problem? By using 2 or 3 Cartesian coordinates?

PVD, In order to deposit films of the alloy YBa2Cu3, the metals Y, Ba, and ...

In order to deposit films of the alloy YBa2Cu3, the metals Y, Ba, and Cu are evaporated from three point sources. The latter are situated at the corners of an equilateral triangle

Explain Fusion Reaction, Fusion Reaction: In nuclear fusion light nucle...

Fusion Reaction: In nuclear fusion light nuclei are brought together to form a relation heavier nucleus. They energy free in nuclear fusion is larger than that free in fission.

Mechanical energy, An object falls from a high tower and lands on a high hi...

An object falls from a high tower and lands on a high hill with an alpha angle. Then he jumps while going down the hill. How long is the distance between when the ball landed and t

Write Your Message!

Captcha
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