1
JEE Main 2023 (Online) 24th January Evening Shift
Numerical
+4
-1
Change Language

One mole of an ideal monoatomic gas is subjected to changes as shown in the graph. The magnitude of the work done (by the system or on the system) is __________ J (nearest integer)

JEE Main 2023 (Online) 24th January Evening Shift Chemistry - Thermodynamics Question 25 English

Given ; $$\log2=0.3$$

$$\ln10=2.3$$

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2
JEE Main 2023 (Online) 24th January Evening Shift
Numerical
+4
-1
Change Language

Maximum number of isomeric monochloro derivatives which can be obtained from 2,2,5,5-tetramethylhexane by chlorination is _____________

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3
JEE Main 2023 (Online) 24th January Evening Shift
Numerical
+4
-1
Change Language

Following figure shows spectrum of an ideal black body at four different temperatures. The number of correct statement/s from the following is ____________.

JEE Main 2023 (Online) 24th January Evening Shift Chemistry - Thermodynamics Question 26 English

A. $$\mathrm{T_4 > T_3 > T_2 > T_1}$$

B. The black body consists of particles performing simple harmonic motion.

C. The peak of the spectrum shifts to shorter wavelength as temperature increases.

D. $${{{T_1}} \over {{v_1}}} = {{{T_2}} \over {{v_2}}} = {{{T_3}} \over {{v_3}}} \ne $$ constant

E. The given spectrum could be explained using quantisation of energy.

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4
JEE Main 2023 (Online) 24th January Evening Shift
Numerical
+4
-1
Out of Syllabus
Change Language

The number of statement/s which are the characteristics of physisorption is __________

A. It is highly specific in nature

B. Enthalpy of adsorption is high

C. It decreases with increase in temperature

D. It results into unimolecular layer

E. No activation energy is needed

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