Daily Practice Problems
Class 11 Chemistry
States of Matter
daily practice problem


Derive numerical values of R in L atm K-1 mol-1 , J K-1 mol-1 , calorie K-1 mol-1.


A gas occupies 20 litre under a pressure of 1 atmosphere. What will be its volume if the pressure is increased to 2 atmosphere? (Temperature is constant)


A gas occupies 600 ml at 27 °C and 1 atm. What will be the volume at 127 °C if the pressure is kept constant?


Gas Cylinder containing cooking gas can withstand a pressure of 14.9 atm. The pressure gauge of the cylinder indicates 12 atm at 27 °C. Due to a sudden fire in the building, the temperature starts rising. At what temperature will the cylinder explode?


A gas having volume 1000 ml at -73 °C and 2 atm is heated to 123 °C and the pressure is decreased to 0.5 atm. What will be final volume?


3.7 g of a gas at 25 °C occupies the same volume as 0.184 g of H2 at 17 °C and at the same pressure. Find the molar mass of gas?


What is the pressure of HCl gas at -40 °C if its density is 8.0 kg m-3 ? (R = 8.314 J K-1 mol-1)


A certain quantity of a gas occupies 100 mL when collected over water at 15°C and 750 mm pressure. It occupies 91.9 mL in dry state at NTP. What will be the aqueous vapour pressure at 15 °C?


A balloon of diameter 20 m weighs 100 kg. Calculate its payload if it is filled with He at 1.0 atm and 27 °C. Density of air is 1.2 kg m-3. (R = 0.082 dm3  atm K-1 mol-1)


Coefficient of volume expansion of a gas is:







A 10 L flask contains 0.2 mole of methane, 0.3 mole of hydrogen and 0.4 mole of nitrogen at 25°C. What is the partial pressure of each component and what is the pressure inside the flask?  


What is Viscosity coefficient? Give its SI unit.


The van der Waals' constant' a' for the gases O2, N2, NH3 and CH4 are 1.36, 1.39, 4.17 and 2.253 respectively, the gas which can be most easily liquefied is:

1) O2

2) N2

3) NH3

4) CH4


Why Surface tension decreases as temperature increases?


What is Boyle point?


Give the postulates of Kinetic theory of gases in brief.


Give the physical properties of gases.


Which elements exists as gases under normal conditions?


Why viscosity of liquids decreases as temperature increases?


State Dalton’s Law of Partial Pressures.         


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  1. Application of Knowledge: Problem-solving allows you to apply the theoretical concepts of the topic Class 11 Chemistry States of Matter you have learned to real-life situations. It helps you bridge the gap between abstract knowledge and practical scenarios, making the learning more relevant and meaningful.
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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 States of Matter NCERT Chapter

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 States of Matter NCERT Chapter useful.

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