(C) The change in internal energy of the gas (i) zero, if it is expanded reversibly with $\mathrm{T}_{1} \mathrm{T}_{2}$, and (ii) positive, if it is expanded reversibly under adiabatic conditions with $\mathrm{T}_{1} \neq \mathrm{T}_{2}$ (D) $\Delta \mathrm{S}_{\mathrm{x} \rightarrow \mathrm{y} \rightarrow \mathrm{z}}=\Delta \mathrm{S}_{\mathrm{x} \rightarrow \mathrm{y}}$ These questions are prepared by experts who have spent years in the field of teaching. Get detailed Class 11th &12th Physics Notes to prepare for Boards as well as competitive exams like IIT JEE… If $\mathrm{T}_{2}>\mathrm{T}_{1},$ the correct statement(s) is (are) IIT JEE Advanced Previous Year Questions Problem for Thermodynamics. (A) 5.763 (B) 1.013 (C) –1.013 (D) –5.763 The present boxset contains the last 40 Years’ (1979-2019) Chapterwise Solved Questions of IIT JEE Physics, Chemistry, and Mathematics, along with previous years’ solved papers of IIT JEE and JEE Main & Advanced. The temperatures at A, B and C are 400 K, 800 K and 600 K respectively. The net work done on the gas in the cycle ABCDA is :- The process BC is adiabatic. (1) 1076 R            (2) 1904 R           (3) Zero             (4) 276 R One mole of diatomic ideal gas undergoes a cyclic process ABC as shown in figure. (4) $4 \mathrm{p}_{0} \mathrm{v}_{0}$ SHOW SOLUTION (A) $\mathrm{q}_{\mathrm{AC}}=\Delta \mathrm{U}_{\mathrm{BC}}$ and $\mathrm{w}_{\mathrm{AB}}=\mathrm{P}_{2}\left(\mathrm{V}_{2}-\mathrm{V}_{1}\right)$ The specific heat capacity of a metal at low temperautre (T) is given as $\mathrm{C}_{\mathrm{p}}\left(\mathrm{kJk}^{-1} \mathrm{kg}^{-1}\right)=32\left(\frac{\mathrm{T}}{400}\right)^{3}$ A 100 gram vessel of this metal is to be cooled from 20°K to 4°K by a special refrigerator operating at room temperature (27°C). At the same time, a bullet of mass 0.02 Kg is fired vertically upward, with a velocity 100 m/s, from the ground. [JEE 2012] Students who solve the previous year question papers of JEE Main/Advanced understand better the trend of questions and topics asked in past exams. The present boxset contains the last 40 Years’ (1979-2019) Chapterwise Solved Questions of IIT JEE Physics, Chemistry, and Mathematics, along with previous years’ solved papers of IIT JEE and JEE Main & Advanced. (4) a = b Numerical More. And give a solution for that, Give the questions completely and keep solutions for those questions, It’s netter to give solutions for these questions, U have not given solutions for thermodynamics previous year questions. Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...Sol. At JEE level, Thermodynamics mostly runs on the tip of formulae. The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure. Download eSaral app  for free study material and video tutorials. If during the adiabatic expansion part of the cycle the volume of the gas increases from V to 32 V, the efficiency of the engine is :- (Assume $\Delta \mathrm{H}^{\theta}$ and $\Delta \mathrm{S}^{\theta}$ are independent of temperature and ratio of $\ln \mathrm{K}$ at $\mathrm{T}_{1}$ to $\ln \mathrm{K}$ at $\mathrm{T}_{2}$ is greater than $\mathrm{T}_{2 / \mathrm{T}_{\mathrm{T}}}$. The correct statement(s) among the following is(are) (A,C), If $\mathrm{T}_{2}>\mathrm{T}_{1},$ the correct statement(s) is (are), (Assume $\Delta \mathrm{H}^{\theta}$ and $\Delta \mathrm{S}^{\theta}$ are independent of temperature and ratio of $\ln \mathrm{K}$ at $\mathrm{T}_{1}$ to $\ln \mathrm{K}$ at $\mathrm{T}_{2}$ is greater than $\mathrm{T}_{2 / \mathrm{T}_{\mathrm{T}}}$. Which of the following statement(s) is (are) correct ? Disha Publication 41 Years (1978-2018) JEE Advanced (IIT-JEE) + 17 yrs JEE Main Topic-wise Solved Papers Download JEE Main Chapter wise Previous Years Solved Papers ( 2002-2019 ) | JEE Main Trend Analysis 2020 (1) 0.25            (2) 0.5           (3) 0.75             (4) 0.99 (3) P, T (2) $\mathrm{T} \propto \frac{1}{\mathrm{R}^{3}}$ 42 YEAR (1978-2019) IIT JEE ADVANCED PAPER SOLUTION 19 YEAR (2002-2020) JEE MAIN (AIEEE) PAPER SOLUTION Every aspirant must check the JEE Main/Advanced previous year question papers to understand the nature of the exam. Students who solve the previous year question papers of JEE Main/Advanced understand better the trend of questions and topics asked in past exams. The work done on the gas in taking it from D to A is :- In this process, the change in entropy of surroundings $\left(\Delta \mathrm{S}_{\text {surr }}\right)$ in $\mathrm{J} \mathrm{K}^{-1}$ is –, For a reaction taking place in a container in equilibrium with its surroundings, the effect of temperature on its equilibrium constant K in terms of change in entropy is described by, An ideal gas is expanded from $\left(p_{1}, V_{1}, T_{1}\right)$ to $\left(p_{2}, V_{2}, T_{2}\right)$ under different conditions. A diatomic ideal gas is used in a carnot engine as the working substance. Problems Sheets are a collection of a question bank for IIT JEE Mains and Advanced. (3), (1) 0.25            (2) 0.5           (3) 0.75             (4) 0.99, Q. (C) $\mathrm{W}_{\text {isothermal }}>\mathrm{W}_{\text {adiabatic }}$ Except of sign convention. Get detailed Class 11th & 12th Physics Notes to prepare for Boards as well as competitive exams like IIT JEE… 4.8. (2), Q. JEE Main Physics Previous Year Questions With Solutions on Thermodynamics ΔQ = ΔU + ΔW Change in internal energy ΔU = ΔQ = 8.4 x 103 J = 8.4 kJ Answer: (b) 8.4 kJ Q9: 200 g water is heated from 40° C to 60 °C. Dec 13,2020 - MCQ (Previous Year Questions) - Thermodynamics (Level 2) | 25 Questions MCQ Test has questions of JEE preparation. (4), (1) –690 R            (2) +690 R            (3) –414 R               (4) +414 R, Q. Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...Sol. Get detailed Class 11th & 12th Physics Notes to prepare for Boards as well as competitive exams like IIT JEE, NEET etc. A 1-kg block of ice at 0ºC is placed into a perfectly insulated, sealed container that has 2 kg of water … [JEE – Adv. An ideal gas in thermally insulated vessel at internal pressure = $\mathrm{P}_{1}$, volume = $V_{1}$ and absolute temperature = $\mathrm{T}_{1}$ expands irrversibly against zero external pressure, as shown in the diagram. JEE Main Physics Previous Year Chapter Wise Questions With Solutions Get more information about JEE Main Notification. SHOW SOLUTION Here, P , V and T are pressure , volume and temperature , respectively. ... JEE main Previous Year Papers and Solutions. This course is concerned with the previous year subjective questions of thermodynamics asked in IIT JEE. Free Question Bank for JEE Main & Advanced Chemistry Thermodynamics. The question bank consists of Answer key and solutions to all the problems … (B,C), (A) With increase in temperature, the value of K for exothermic reaction decreases because the entropy change of the system is positive, (B) With increase in temperature, the value of K for endothermic reaction increases because unfavourable change in entropy of the surroundings decreases, (C) With increase in temperature, the value of K for exothermic reaction decreases because favourable change in entropy of the surroundings decreases, (D) With increase in temperature, the value of K for endothermic reaction increases because the entropy change of the system negative, Q. (3) between 0.148 kJ and 0.028 kJ JOIN OUR TELEGRAM GROUP … Active Users. Paper 1 was held from 9 am to 12 pm while paper 2 was conducted from 2 pm to 5 pm. One part is filled with an ideal gas at a pressure P and temperature T, whereas the other part is completely evacuated. (3) (a) 195 K (b) 2.7 kJ Assuming the gas to be ideal the work done on the gas in taking it from A to B is :- SHOW SOLUTION (A) $\mathrm{T}_{1}=\mathrm{T}_{2}$ During past few years, a number of surveys on students were made to better understand their problems regarding their studies and their basic requirement. (1) –690 R            (2) +690 R            (3) –414 R               (4) +414 R 2017] The correct statement(s) among the following is(are). The entire syllabus of Class 11th and 12th has been comprehensive to ensure maximum understanding of the concepts. The final internal pressure, volume and absolute temperature of the gas are $P_{2}$, $\mathrm{V}_{2}$ and $\mathrm{T}_{2}$, respectively. \begin{aligned}(\mathbf{4}) \mathrm{q} &=0(\text { adiabatic }), \mathrm{w}=0(\text { free expansion }) \\ \Delta \mathrm{U} &=0 \Rightarrow \Delta \mathrm{T}=0 \text { (isothermal) } \end{aligned}, (A) The work done on the gas is maximum when it is compressed irreversibly from ($\mathrm{p}_{2}$ , $\mathrm{V}_{2}$) to ($\mathrm{p}_{1}, \mathrm{V}_{1}$) against constant pressure $\mathrm{p}_{1}$. (D) Molar enthalpy JEE Main Previous Year Question of Physics with Solutions are available here. In order to help you master the JEE-level Physics questions, we provide you with a repository of important questions. As well as competitive exams like IIT JEE teachers a better way exams such as JEE Mains and.. Save my name, email, and website in this browser for the next time I.! 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