Calculate heat energy required, Chemistry

Assignment Help:

Calculate how much heat energy is required to raise the temperature of a cube of copper of side 2cm. from 300 to 320k. given: density=8933kg/m cube , atomic weight=63.55, cp=24j/k/mole


Related Discussions:- Calculate heat energy required

Conventional current direction, Why the current flow is always oppositte in...

Why the current flow is always oppositte in direction to the conventional current direction? Ans) Availability of free electrons and application of potential difference are the c

Show the properties of lithium aluminium hydride, Q. Show the properties of...

Q. Show the properties of Lithium Aluminium Hydride? Lithium aluminium hydride is much more useful than aluminium hydride. It is prepared in the laboratory by the action of LiH

State the functions of oxide layer, State the Functions of oxide layer ...

State the Functions of oxide layer (i) To mask against diffusion or ion-implant, (ii) To passivate surface electrically and chemically. (iii) To isolate one device from a

Crystals, what is a crystal and why do crystals have regular faces?

what is a crystal and why do crystals have regular faces?

Buffers, how do you prepare 100mM pH 7.4 of Potassium phospate buffer

how do you prepare 100mM pH 7.4 of Potassium phospate buffer

Why alkylamines are stronger bases than arylamines, (a) Assign a reason for...

(a) Assign a reason for each of the following statements: (i) Alkylamines are stronger bases than arylamines. (ii) Acetonitrile Is preferred as solvent for carrying out sever

Name the principal ore of tin or lead, Name the principal ore of tin or lea...

Name the principal ore of tin or lead. Describe the different steps (along with equationsfor the reactions) involved in the extraction of the metal from the ore named. Name

Calomel electode, explain the construction and working of calomel electrode...

explain the construction and working of calomel electrode

How is potassium dichromate prepared, (a) Starting from a sample of chromat...

(a) Starting from a sample of chromate ore, how is potassium dichromate prepared? Explain all the steps included with chemical equations. (b) Write the balanced chemical equatio

Anna

3/29/2013 3:56:15 AM

Heat energy required = mcT
mass=d.v=8933 . (.02)^3 = .0712 kg = 71.2 gm
mo of moles =  71.2 / 63.55 = 1.12 moles
c=24 j/k-mole.
T=20
H= (1.12) . 24 . 20
  =537.6 Joules (ANS)

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