1

WB JEE 2019

MCQ (Single Correct Answer)

+2

-0.5

Two identical blocks of ice move in opposite directions with equal speed and collide with each other. What will be the minimum speed required to make both the blocks melt completely, if the initial temperatures of the blocks were $$-$$8$$^\circ$$C each? (Specific heat of ice is 2100 Jkg

^{$$-$$1}K^{$$-$$1}and latent heat of fusion of ice is 3.36 $$ \times $$ 10^{5}Jkg^{$$-$$1})2

WB JEE 2018

MCQ (Single Correct Answer)

+1

-0.25

The water equivalent of a calorimeter is 10 g and it contains 50 g of water at 15$$^\circ$$C. Some amount of ice, initially at $$-$$ 10$$^\circ$$C is dropped in it and half of the ice melts till equilibrium is reached. What was the initial amount of ice that was dropped (when specific heat of ice = 0.5 cal gm

^{$$-$$1}$$^\circ$$C^{$$-$$1}, specific heat of water = 10 cal gm^{$$-$$1}$$^\circ$$C^{$$-$$1}and latent heat of melting of ice = 80 cal gm^{$$-$$1}) ?3

WB JEE 2018

MCQ (Single Correct Answer)

+1

-0.25

One mole of a monoatomic ideal gas undergoes a quasistatic process, which is depicted by a straight line joining points $$({V_0},{T_0})$$ and $$({2V_0},{3T_0})$$ in a V-T diagram. What is the value of the heat capacity of the gas at the point $$({V_0},{T_0})$$?

4

WB JEE 2018

MCQ (Single Correct Answer)

+1

-0.25

For an ideal gas with initial pressure and volume p

_{i}and V_{i}respectively, a reversible isothermal expansion happens, when its volume becomes V_{0}. Then, it is compressed to its original volume V_{i}by a reversible adiabatic process. If the final pressure is p_{f}, then which of the following statement(s) is/are true?Questions Asked from Heat and Thermodynamics (MCQ (Single Correct Answer))

Number in Brackets after Paper Indicates No. of Questions

WB JEE Subjects

Physics

Mechanics

Units & Measurements Vector Algebra Motion Laws of Motion Work Power & Energy Center of Mass Rotational Motion Properties of Matter Heat and Thermodynamics Simple Harmonic Motion Waves Gravitation

Electricity

Electrostatics Current Electricity Capacitor Magnetism Electromagnetic Induction Alternating Current Electromagnetic Waves

Optics

Modern Physics

Chemistry

Physical Chemistry

Some Basic Concepts of Chemistry Atomic Structure Redox Reaction Gaseous State Chemical Equilibrium Liquid Solution Ionic Equilibrium Thermodynamics Chemical Kinetics Radioactivity and Nuclear Chemistry Electrochemistry Solid State Surface Chemistry

Inorganic Chemistry

Periodic Table Chemical Bonding Metallurgy Hydrogen and It's Compounds Some s Block Elements Some P Block Elements d and f Block Elements Coordination Compounds

Organic Chemistry

Mathematics

Algebra

Sets and Relations Logarithms Sequence and Series Quadratic Equations Permutations and Combinations Mathematical Induction and Binomial Theorem Matrices and Determinants Vector Algebra Three Dimensional Geometry Probability Complex Numbers Statistics

Trigonometry

Coordinate Geometry

Calculus