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

Truth operation by OR GATE, i am class 12 student given an assignment on ''...

i am class 12 student given an assignment on ''to study the truth operation performed by OR GATE.'' please help me with the assignment

What do some fiber change the color of light, What do some fiber change the...

What do some fiber change the color of light? Actually, all fibers change the color of the light in one technique or other. Because of the physical characteristics of the condu

Refractive index of liquids using prism spectrometer, explain the refractiv...

explain the refractive index of the transparent liquid using prism spectrometer?

Find the discharge between the two tanks, Water is draining from tank A to ...

Water is draining from tank A to tank B. The elevation difference between the two tanks is 10 m. The pipe connecting the two tanks has a sudden-expansion section as shown. The cros

Electricity, Derive expression for total power consumed when three applianc...

Derive expression for total power consumed when three appliances of power p1 p2 nd p3 are connected in series.

Astronomy, The birghtness of objects past Neptune actually varies approxima...

The birghtness of objects past Neptune actually varies approximately as 1/d^4. Why is that the case?

State ideal gas equation, All the given four Laws may be written in one rel...

All the given four Laws may be written in one relation,  PV  = nRT =m/n RT   This formula is known as deal gas equation. Where m = mass of the gas M = molecular mass of t

Explain the molecular theory of surface tension, (i)  On the average, parti...

(i)  On the average, particles are separated by a distance of the order of 10-10 m and exert a force of attraction of the order of 10-11 N on each other. (ii)  The force of atta

Liebig condenser (iron), Liebig condenser (iron) A piece of iron pipe l...

Liebig condenser (iron) A piece of iron pipe line as is used for water or electric conduit can be used to make a metal condenser which is much more robust than a glass one. Inl

What is meant by the term modulation, What is meant by the term 'modulation...

What is meant by the term 'modulation'? Define with the help of a block diagram, how the process of modulation is carried out in radio broadcasts.

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