Daily Practice Problems
Class 11 Chemistry
Thermodynamics
Class 11 Chemistry
Thermodynamics
Question1.
A system absorbs 30 KJ of heat and does work of 10.4 KJ on its surrounding. Calculate the change in internal energy.
Question2.
Which of the two an ideal crystal or a real crystal has more entropy. Explain why?
Question3.
For an ideal gas, Give relation between Cp and Cv .
Question4.
For a reaction
C3H8 + 5O2 à 3CO2 + 4H2O
At constant temperature, ∆H-∆E is-
(a) +RT
(b) -3RT
(c) +3RT
(d) -RT
Question5.
The Work done during the expansion of a gas from a volume of 8 dm3 to 2.5 dm3 under a constant external pressure of 4 atm is ( 1 L atm = 101.32 J) –
(a) 2229.04 J
(b) 2530.40 J
(c) 23.45 J
(d) 3240.5 J
Question6.
One mole of an ideal gas undergoes change in state (4.0 atm, 3.0L, 95K) à (6.0 atm, 7.50L, 245K) with the change in internal energy, ∆U = 25.0 L atm. The change in enthalpy (∆H) of the process in L atm is:
(a) 44
(b) 58
(c) 60
(d) Not defined as the pressure is not constant.
Question7.
Define extensive and intensive property with suitable examples.
Question8.
In a Cyclic process the change in enthalpy is –
(a) zero
(b) -2R∆T
(c) -P∆V
(d) -∆U + P∆V
Question9.
What do you understand by coupled reactions?
Question10.
At equilibrium some measurable properties become –
(a) double of the reactant
(b) constant
(c) twice of product
(d) none of these
Question11.
What do you understand by iso-thermal, adiabatic and isobaric process?
Question12.
What is enthalpy of neutralization and atomisation?
Question13.
Answer the following question-
(a)Stretched rubber has more order than loose rubber then entropy of the rubber …..
(b) In the process photosynthesis, the carbohydrates formed are solid then the order and entropy…..
(c) CO2(g) has less order than dry ice. Then the order and entropy ……
Question14.
At 5 x 105 bar pressure density of diamond and graphite are 3g/cc and 2g/cc respectively certain temperature ‘T’. Find the value of ∆U-∆H for the conversion of 1 mole of graphite 1 mole of diamond at temperature ‘T’.
(a) 100KJ/Mol
(b) 50KJ/Mol
(c) -100KJ/Mol
(d) None of these
Question15.
For which of the following substances the enthalpy of formation in the formation in the standard state is Zero?
(a) Sucrose
(b) Ethanol
(c) Aluminium
(d) CaCl2
Question16.
Which of the following value of (∆fH) represent that the product is least stable?
(a) -94.0Kcal/mol
(b) -231.6 Kcal/mol
(c) +21.4 Kcal/mol
(d) +64.8 Kcal/mol
Question17.
A cyclic process ABCD is shown in P-V Diagram for an ideal gas. Which of the following diagram represent the same process?
Question18.
The amount of heat measured for a reaction in a bomb calorimeter is:
(a) ∆G
(b) ∆H
(c) ∆U
(d) P∆V
Question19.
Write Kirchhoff’s equations.
Question20.
Match the following partial derivatives with their thermodynamic variable
(a) 
V - CP
(b) 
P - CV
(c) 
P - -nFE
(d) 
T - V
(e) (∆Gsystem)T,P - -S
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In summary, problem-solving after learning a theoretical concept on CBSE Thermodynamics Class 11 Chemistry is an essential part of the learning process. It enhances your understanding, critical thinking abilities, and retention of knowledge. Moreover, it equips you with valuable skills that are applicable in academic, personal, and professional contexts.
You must have heard of the phrase “Practice makes a man perfect”. Well, not just a man, practice indeed enhances perfection of every individual.
Practicing questions plays a pivotal role in achieving excellence in exams. Just as the adage goes, "Practice makes perfect," dedicating time to solve a diverse range of exam-related questions yields manifold benefits. Firstly, practicing questions allows students to familiarize themselves with the exam format and types of problems they might encounter. This familiarity instills confidence, reducing anxiety and improving performance on the actual exam day. Secondly, continuous practice sharpens problem-solving skills and enhances critical thinking, enabling students to approach complex problems with clarity and efficiency. Thirdly, it aids in identifying weak areas, allowing students to focus their efforts on improving specific topics. Moreover, practice aids in memory retention, as active engagement with the material reinforces learning. Regular practice also hones time management skills, ensuring that students can allocate appropriate time to each question during the exam. Overall, practicing questions not only boosts exam performance but also instills a deeper understanding of the subject matter, fostering a holistic and effective learning experience.
All About Daily Practice Problems on Class 11 Chemistry Thermodynamics NCERT Chapter 5
Our Daily Practice Problems (DPPs) offer a diverse range of question types, including Multiple Choice Questions (MCQs) as well as short and long answer types. These questions are categorized into Easy, Moderate, and Difficult levels, allowing students to gradually progress and challenge themselves accordingly. Additionally, comprehensive solutions are provided for each question, available for download in PDF format - Download pdf solutions as well as Download pdf Questions. This approach fosters a holistic learning experience, catering to different learning styles, promoting self-assessment, and improving problem-solving skills. With our well-structured DPPs, students can excel in exams while gaining a deeper understanding of the subject matter. Hope you found the content on Class 11 Chemistry Thermodynamics NCERT Chapter 5 useful.
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