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Theme 1: Strategies for Procuring Materials (in Hindi)
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Strategies for procuring materials

## Arti Chhawari is teaching live on Unacademy Plus

Arti Chhawari
Story teller.Less as a teacher and more as a designer of meaningful experiences.Lets reconstruct our hi(story) together📚

U
Sir provide some more numericals
Harshit Aggarwal
2 years ago
OK
RT
Rahul T Lingayat
2 years ago
Sir plz provide Free & Forced Convection, Heat Exchanger
KUNDAN KUMAR
2 years ago
sir i am a food technology student and i have to read thermodyanamics for gate so plz send me a notes pdf of thermodyanamics
KUNDAN KUMAR
2 years ago
Section 1: Basic Concepts Continuum and macroscopic approach; thermodynamic systems (closed and open); thermodynamic properties and equilibrium; state of a system, state postulate for simple compressible substances, state diagrams, paths and processes on state diagrams; concepts of heat and work, different modes of work; zeroth law of thermodynamics; concept of temperature. Section 2: First Law of Thermodynamics Concept of energy and various forms of energy; internal energy, enthalpy; specific heats; first law applied to elementary processes, closed systems and control volumes, steady and unsteady flow analysis. Section 3: Second Law of Thermodynamics Limitations of the first law of thermodynamics, concepts of heat engines and heat pumps/refrigerators, Kelvin-Planck and Clausius statements and their equivalence; reversible and irreversible processes; Carnot cycle and Carnot principles/theorems; thermodynamic temperature scale; Clausius inequality and concept of entropy; microscopic interpretation of entropy, the principle of increase of entropy, T-s diagrams; second law analysis of control volume; availability and irreversibility; third law of thermodynamics. Section 4: Properties of Pure Substances Thermodynamic properties of pure substances in solid, liquid and vapor phases; P-vT behaviour of simple compressible substances, phase rule, thermodynamic property tables and charts, ideal and real gases, ideal gas equation of state and van der Waals equation of state; law of corresponding states, compressibility factor and generalized compressibility chart. Section 5: Thermodynamic Relations T-ds relations, Helmholtz and Gibbs functions, Gibbs relations, Maxwell relations, Joule-Thomson coefficient, coefficient of volume expansion, adiabatic and isothermal compressibilities, Clapeyron and Clapeyron-Clausius equations. Section 6: Thermodynamic Cycles Carnot vapor cycle, ideal Rankine cycle, Rankine reheat cycle, air-standard Otto cycle, air-standard Diesel cycle, air-standard Brayton cycle, vapor-compression refrigeration cycle. Section 7: Ideal Gas Mixtures Dalton’s and Amagat’s laws, properties of ideal gas mixtures, air-water vapor mixtures and simple thermodynamic processes involving them; specific and relative humidities, dew point and wet bulb temperature, adiabatic saturation temperature, psychrometric chart. plz sir mail me and also video on these all topics and pdf notes plz sir these are my syllabus........plz mail me pdf on kundankumar93muz@gmail.com
thank you MAM THANKS FOR YOUR EFFORTS AND VALAUBLE TIME. GOD BLESS YOU.
Arti Chhawari
a year ago
u can also complete your Ancient by Ram Sharan Sharma and History of Medieval India by Satish Chandra through my courses. stay tuned. #happlearning
Heena ansari
a year ago
ma'am please tell me can I get personally connected to you ??? and ma'am one more thing r u also an IAS exam aspirant ???
super 👌👌👌
ma'am u r an awesome story teller this book is made soooo easy love u ma'am thankyou somuch please keep on making such helpful videos
S
1. THEMES IN INDIAN HISTORY, CLASS 12H NCERT, PART 1

2. Theme 1:BRICKS BEADS AND BONES (The Harappan Civilisation)

3. 1.6.Strategies for procuring materials Materials from the subcontinent and beyond Rehman Dher Culture Harappa raP Rakhigarhi Mitathal Ganweriwala ochpura Establishing settlement in new areas near resources Sending expedition in new areas Mohenjo-Daro Dup Chanhu-Daro Shah Kot Cuture Phar banas Cunure Amn Allahdino Dholavira Surkotada

4. Contact with distant lands Mesopatamia . Copper from Oman Proof: 1. Romania copper and Harappan Meluhha artefacts have traces of nickel 2. A Harappan jar found in Oman Dilmun Magan . Contact with Mesopotamia . Proof: 1. Mesopotamian text mention contact with Meluhha Contact with Dilmeirn Proof: 2. Products from Meluhha:carnelian,lapiz lazuli,gold etc. 1. Seals with Harappan motifs 2. Weights follow Harappan 3. Cylindrical seal,having motif derived from Indus region standards

5. . Communication with distant lands through ships and boats