Match the following:
1. (a) Work done by a gas, (A) Heat and work inter changes
2. (b) First law of thermodynamics , (B) `1-(Q_2/Q_1)` B)
3. (c) Second law of thermodynamics, (C) `PDeltaV` B)
4. (d) Efficiency , (D)`DeltaQ=DeltaU+DeltaW`

Which of the following represents the first law of thermodynamics?(1) ΔU=q+w (2)ΔH=q+W, (3) Δ U=H+pΔV (4) ΔU=pΔV

a) Explain the first, second and third laws of thermodynamics. b) What do you meant by entropy? c) Explain the spontaneous process.

State first law of Thermodynamics. Heat (q) and work done (w) individually are not state functions but their sum is always a state function. Explain. Why?

Thermodynamics deals with energy changes of macroscopic system. a) Consider a chemical reaction taking place in a closed insulated vessel. To which type of thermodynamic system does it belong? b) State the first law of thermodynamics. c) 3 mol of an ideal gas at 1.5 atm and 25^oC expands isothermally in a reversible manner to twice its original volume against an external pressure of 1 atm. Calculate the work done. [R = 8.314 JK^-1mol^-1]

Pick the odd one out the following. (a) Ohm's law (b) Lenz's law (c) Coulomb's law (d) Gauss's law (e) Energy conservation law

For the reaction A + 2B to C + D , the following data were obtained: The correct rate law expression will be:

Show that the points A(1,2,3) , B(-1,-2,-1) , C(2,3,2) and D(4,7,6) are the vertices of a parallelogram.

If a, b and c are distinct reals and the determinant |{:(a ^(3) +1, a ^(2) , a ),( b ^(3) +1, b ^(2) , b ),( c ^(3) +1, c ^(2), c):}|= 0, then the product abc is