Hi aspirant,

As we know that,

dq=dU+PdV

When the volume is kept constant dV=0

PdV=0 and hence dq=dU

Therefore dU= 200J

Hope it helps!!

hi,

since the gate XE has newly added in gate papers the top gate coaching institute has still not offers this course. however you may study the mathematics and aptitude part from previous years booklet of any of the stream.

gradup, enduranceenggacademy has gate XE test series. since gradeup has overall good reviews I would recommend to try for gradeup course .

Hello Raghavendra,

It is good that your participating in Gate exam as you have asked about the Test Series this is one of the best query regarding Gate exam because, most of them fail in selecting the best test series. Remember you shouldn't compromise with the question paper standard in test series because, the tough questions improves and builds your thought process over the given concept.

So I'll suggest you to select 2 to 3 test series to improve your confidence as well as way solving. The test series are :

1) ACE ACADEMY

2) GATE ACADEMY

3) MADE EASY use these test series atleast for the Aptitude and Mathematics.

And for your core XE paper you can appear for below 2 test series:

1) Grade up (Test series & mock tests)

2) Endurance Engineering Academy

Still many more are there but I think these test series are best for you to practice and achieve a good rank.

Hope you have no doubts regarding your query.

Hello there

See, each and every chapter is important is important in JEE syllabus.And the chapter you mentioned is Heat and Thermodynamics is one of the most important topics including

sound and waves , electricity,magnetism etc..

Candidates most often think Heat and Thermodynamics as toughest part but with practice and understanding it will be clear .

According to JEE MAIN 2021 ,these are the most important topics and chapters of Physics  ;

*THERMODYNAMICS

*ELECTROSTATICS

*ROTATIONAL MOTION

*SHM

*MAGNETISM

*MODERN PHYSICS

*OPTICS

Here are some book recommendations ,you can follow ;

•NCERT CLASS 11 AND 12 TEXTBOOKS

•CONCEPTS OF PHYSICS BY HC VERMA (BOTH THE VOLUME)

•PROBLEMS IN GENERAL PHYSICS BY I.E IRODOV

•FUNDAMENTALS OF PHYSICS BY HALLIDAY,RESNICK & WALKER

You can also visit the link for preperation tips ;

https://engineering.careers360.com/articles/jee-main-preparation-tips-expert

Some of the most preferred books for the subject are:

• Chemical Engineering Thermodynamics  by Gavhane
• Introduction to Chemical engineering Thermodynamics by Smith and Ness
• Introductory Chemical Engineering Thermodynamics by Eliott

You may search this books on Pdfdrive or Libgen for the pdf versions.

I hope this answer helps you. All the very best for your future endeavors!

Hi Candidate,

Hybridization in Central carbon atom refers to the number of Sigma- bonded groups attached to the main center. The hybridization in the carbon group is- ((CH3)3).C where the outer "C", is the central carbon atom. The central carbon atom is tied to three CH3 and one Hydrogen atom, which makes it sp3 Hybridization.

Hope that this answer helps you. Have a Good Day!!

Hello candidate,

Covalent bonding is a very strong kind of chemical bond apart from ionic bonds which are formed by by the donation and acceptance of electrons. In covalent bonding, the electrons of of both the participating atoms get paired with the electrons to form a bond.

The cleavage of chemical bond is generally done by the process of heating the molecules up to their bond dissociation energy, which involves a huge amount of exothermic heat generation.

Hope it helps!!