1

JEE Main 2020 (Online) 6th September Morning Slot

Numerical

+4

-0

Initially a gas of diatomic molecules is contained in a cylinder of volume V

_{1}at a pressure P_{1}and temperature 250 K. Assuming that 25% of the molecules get dissociated causing a change in number of moles. The pressure of the resulting gas at temperature 2000 K, when contained in a volume 2V_{1}is given by P_{2}. The ratio $${{{P_2}} \over {{P_1}}}$$ is ________.Your input ____

2

JEE Main 2020 (Online) 6th September Morning Slot

Numerical

+4

-0

A part of a complete circuit is shown in the figure. At some instant, the value of current I is 1A and
it is decreasing at a rate

of 10

of 10

^{2}A s^{–1}. The value of the potential difference V_{P}– V_{Q}, (in volts) at that instant, is _________.Your input ____

3

JEE Main 2020 (Online) 5th September Evening Slot

Numerical

+4

-0

Nitrogen gas is at 300

(Molar mass of N

^{o}C temperature. The temperature (in K) at which the rms speed of a H_{2}molecule would be equal to the rms speed of a nitrogen molecule, is _______.(Molar mass of N

_{2}gas 28 g).Your input ____

4

JEE Main 2020 (Online) 4th September Evening Slot

Numerical

+4

-0

The change in the magnitude of the volume of an ideal gas when a small additional pressure $$\Delta $$P is
applied at a constant temperature, is the same as the change when the temperature is reduced by
a small quantity $$\Delta $$T at constant pressure. The initial temperature and pressure of the gas were 300
K and 2 atm. respectively.

If |$$\Delta $$T| = C|$$\Delta $$P| then value of C in (K/atm.) is _________.

If |$$\Delta $$T| = C|$$\Delta $$P| then value of C in (K/atm.) is _________.

Your input ____

Questions Asked from Heat and Thermodynamics (Numerical)

Number in Brackets after Paper Indicates
No. of Questions

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