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Describe, with the help of a circuit diagram, the working of Zener diode as a voltage regulator.
Concept: Zener Diode as a Voltage Regulator
Write differences.
Tribal community and Rural Community
Concept: The Rural Community in India
Write differences.
Casteism and Communalism
Concept: Challenges to National Unity
Briefly describe the process of spermatogenesis.
Concept: Gametogenesis
Explain sex determination in human beings.
Concept: Sex Determination
What is ‘biofortification’?
Concept: Plant Breeding
What is the composition of biogas?
Concept: Microbes in Energy Generation
Construct an age pyramid which reflects an expanding growth status of human population.
Concept: Population
Define ‘Ecological succession’.
Concept: Biotic or Ecological Succession
What do you mean by pioneer species?
Concept: Biotic or Ecological Succession
Distinguish between crystalline solid and amorphous solid.
Concept: Types of Solids
Define Osmosis.
Concept: Colligative Properties and Determination of Molar Mass >> Osmosis and Osmotic Pressure
Define Osmosis.
Concept: Colligative Properties and Determination of Molar Mass >> Osmosis and Osmotic Pressure
Write the mathematical equation of the first law of thermodynamics for an isochoric process.
Concept: Chemical Thermodynamics and Energetic >> First Law of Thermodynamics
Write the mathematical equation of the first law of thermodynamics for an isochoric process.
Concept: Chemical Thermodynamics and Energetic >> First Law of Thermodynamics
Calculate the e.m.f. of the following cell at 298 K:
Fe(s) | Fe2+ (0.001 M) | | H+ (0.01 M) | H2(g) (1 bar) | Pt(s)
Given that \[\ce{E^0_{cell}}\] = 0.44 V
[log 2 = 0.3010, log 3 = 0.4771, log 10 = 1]
Concept: Nernst Equation - Introduction
Define the Standard enthalpy of combustion.
Concept: Thermochemistry
Three moles of an ideal gas are expanded isothermally from 15 dm3 to 20 dm3 at a constant external pressure of 1.2 bar. Calculate the amount of work in Joules.
Concept: Expression for Pressure-volume (PV) Work
For a reaction A + B ⟶ P, the rate is given by
Rate = k [A] [B]2
How is the rate of reaction affected if the concentration of B is doubled?
Concept: Factors Influencing Rate of a Reaction
