Recent content by kittu1421

Entropy will increase but that increase will be due to heat transfer from hot end to cold end and not because of some generations due to irreversibility and that's what i have said above in last equation i have taken entropy generatio(Sgen=0) and not change in total entropy equal to zero(dS!=0)

Hi.. Consider a rod which is insulated on its lateral surface, now this rod is brought in contact with a source at temperature T1 and sink at temperature T2 now a temperature gradient sets up in the rod after steady state is reached temperature at some distance X from the source end is given as...

hi to everybody out there, entropy as i know of now is associated with heat which is basically energy in transit(for a rev. process it is indicative of unavailable part of energy) having said that what is meant by entropy change for a system as heat flows into or out of it(for instance consider...

How are you calculating the energy of the system..

If we consider a thermometer working between t3 and t1 then for some intermediate temperature say t2 are the equations of thermal expansion applicable there as it ...

Thnk u all but the thing is yes it is true that 'a' coefficient of thermal expansion depends on temperature and thermal expansion is linear for small temperature changes, the problem i am facing is even if i am considering these two i am getting a diff result. For ex. If we cosider t3-t2 =...

Hey fellas please consider helping me with this.. There is a bar of some material that is heated from state 1 to 2 to 3. If l1 is the length at 1 then we have, l2 - l1 = l1(1 + a(t2-t1)) l3 - l1 = l1(1 + a(t3-t1)) If, t3-t2 = t2-t1, Then l3-l2 = l2-l1 But if it is written l3 - l2 =...

gottcha...

This has botherd me for quite sometime ...imagine a beam or a simple scale supported at its centre and carrying equal weights on two extreme positions on the scale from the centre, now under equilibrium the scale will be horizontal...now my question is if one of the weight is lowered by action...

That's a correct inference drawn and what u hav mentioned here is unsophisticated definition of Virial theorem...this is put to the explanation of negative heat capacities... for bounded system as mentioned above, an addition to the energy causes a decrease in kinetic energy..and since...