NEETChemistryThermodynamics (C)
Match the following: ( array |c|c|c| & List I & List II (A) & U=W_ ad & I. Isothermal reversible expansion (B) & U=q-W & II. Wall is adiabatic ( C ) & U=-q & III. Thermally conducting walls (D) & U=0 & IV. Isolated system & & V. Closed system array ) The correct answer is
Options
- A( array cc A & B & C & D V & I & II & III array )
- B( array cc A & B & C & D I & III & II & IV array )
- C( array cc A & B & C & D II & V & III & I array )
- D( array cc A & B & C & D II & V & I & III array )
Correct answer
C. ( array cc A & B & C & D II & V & III & I array )
Step-by-step solution
The correct match is ( II A , V B , III C , I D . ) Their explanations are as follows: (D) ( ) I In an isothermal reversible expansion ( aligned T & =0 U & =C_V, T=0 aligned ) (A) ( ) II If wall is adiabatic then (q=0 ) From first law of thermodynamics ( aligned U & =q+W U & =W_ adiabatic aligned ) (C) ( ) III For thermally conducting walls ( U=-q ) (B) ( V ) For close system (q 0, W 0 and W=- ve ) From first law of thermodynamics ( U=q-W )