1
JEE Main 2023 (Online) 8th April Evening Shift
+4
-1

The temperature at which the kinetic energy of oxygen molecules becomes double than its value at $$27^{\circ} \mathrm{C}$$ is

A
$$627^{\circ} \mathrm{C}$$
B
$$927^{\circ} \mathrm{C}$$
C
$$327^{\circ} \mathrm{C}$$
D
$$1227^{\circ} \mathrm{C}$$
2
JEE Main 2023 (Online) 8th April Evening Shift
+4
-1
Out of Syllabus

Work done by a Carnot engine operating between temperatures $$127^{\circ} \mathrm{C}$$ and $$27^{\circ} \mathrm{C}$$ is $$2 \mathrm{~kJ}$$. The amount of heat transferred to the engine by the reservoir is :

A
8 kJ
B
2 kJ
C
4 kJ
D
2.67 kJ
3
JEE Main 2023 (Online) 8th April Morning Shift
+4
-1

Given below are two statements:

Statement I: If heat is added to a system, its temperature must increase.

Statement II: If positive work is done by a system in a thermodynamic process, its volume must increase.

In the light of the above statements, choose the correct answer from the options given below

A
Both Statement I and Statement II are true
B
Statement I is false but Statement II is true
C
Statement I is true but Statement II is false
D
Both Statement I and Statement II are false
4
JEE Main 2023 (Online) 6th April Evening Shift
+4
-1

The temperature of an ideal gas is increased from $$200 \mathrm{~K}$$ to $$800 \mathrm{~K}$$. If r.m.s. speed of gas at $$200 \mathrm{~K}$$ is $$v_{0}$$. Then, r.m.s. speed of the gas at $$800 \mathrm{~K}$$ will be:

A
$$v_{0}$$
B
$$2 v_{0}$$
C
$$4 v_{0}$$
D
$$\frac{v_{0}}{4}$$
EXAM MAP
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