NEET · Chemistry · STD 11 - 5. Thermodynamics and thermochemistry
For irreversible expansion of an ideal gas under isothermal condition, the correct option is :
- A \(\Delta \mathrm{U}=0, \Delta \mathrm{S}_{\text {total }}=0\)
- B \(\Delta \mathrm{U} \neq 0, \Delta \mathrm{S}_{\text {total }} \neq 0\)
- C \(\Delta \mathrm{U}=0, \Delta \mathrm{S}_{\text {total }} \neq 0\)
- D \(\Delta \mathrm{U} \neq 0, \Delta \mathrm{S}_{\text {total }}=0\)
Answer & Solution
Correct Answer
(C) \(\Delta \mathrm{U}=0, \Delta \mathrm{S}_{\text {total }} \neq 0\)
Step-by-step Solution
Detailed explanation
\(\Delta\) Stotal \(>0\) \(\Delta S_{\text {total }} \neq 0\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- The number of \(\sigma\) bonds, \(\pi\) bonds and lone pair of electrons in pyridine, respectively are:NEET 2023 Medium
- Isotonic solutions have sameNEET 2020 Medium
- The \(pH\) of \(0.01\; M \;NaOH (aq)\) solution will beNEET 2019 Medium
- At a certain temperature,T (K), during a process, 500 J is absorbed by the system and work of 200 J is done by the system. Then, change in internal energy of the system is :NEET 2026 Hard
- On balancing the given redox reaction, \(aCr _2 O _7^{2-}+ bSO _3^{2-}( aq )+ cH ^{+}( aq ) \rightarrow 2 aCr ^{3+}( aq )+ bSO _4^{2-}( aq )+\frac{ c }{2} H _2 O ( l )\) the coefficients a, b and \(c\) are found to be, respectively-NEET 2023 Medium
- Given below are two statements :
Statement I : Benzenediazonium salt is prepared by the reaction of aniline with nitrous acid at 273-278 K. It decomposes easily in the dry state.
Statement II : Insertion of iodine into the benzene ring is difficult and hence iodobenzene is prepared through the reaction of benzenediazonium salt with KI. In the light of the above statements, choose the most appropriate answer from the options given below :NEET 2025 Hard
More PYQs from NEET
- Given below are two statements : one is labelled as Assertion \(A\) and the other is labelled as Reason \(R:\) Assertion \(A:\) Metallic sodium dissolves in liquid ammonia giving a deep blue solution, which is paramagnetic. Reason \(R:\) The deep blue solution is due to the formation of amide. In the light of the above statements, choose the correct answer from the options given below :NEET 2023 Hard
- The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the which of the following?NEET 2016 Medium
- Amongst the given options which of the following molecules/ ion acts as a Lewis acid?NEET 2023 Medium
- A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the \(F_1\) plants were selfed the resultinggenotypes were in the ratio ofNEET 2016 Medium
- A device that converts energy of combustion of fuels like hydrogen and methane, directly into electrical energy is known asNEET 2015 Easy
- In a potentiometer circuit a cell of \(EMF\) \(1.5\, {V}\) gives balance point at \(36\, {cm}\) length of wire. If another cell of \(EMF\) \(2.5\, {V}\) replaces the first cell, then at what length of the wire, the balance point occurs ? (in \(cm\))NEET 2021 Medium