JEE Main 2021 (Online) 31st August Morning Shift | Heat and Thermodynamics Question 155 | Physics

For an ideal gas the instantaneous change in pressure 'p' with volume 'v' is given by the equation $${{dp} \over {dv}} = - ap$$. If p = p₀ at v =0 is the given boundary condition, then the maximum temperature one mole of gas can attain is : (Here R is the gas constant)

$${{{p_0}} \over {aeR}}$$

$${{a{p_0}} \over {eR}}$$

infinity

0$$^\circ$$C

JEE Main 2021 (Online) 27th August Evening Shift

MCQ (Single Correct Answer)

-1

if the rms speed of oxygen molecules at 0$$^\circ$$C is 160 m/s, find the rms speed of hydrogen molecules at 0$$^\circ$$C.

640 m/s

40 m/s

80 m/s

332 m/s

JEE Main 2021 (Online) 27th August Evening Shift

MCQ (Single Correct Answer)

-1

The height of victoria falls is 63 m. What is the difference in temperature of water at the top and at the bottom of fall?

[Given 1 cal = 4.2 J and specific heat of water = 1 cal g^$$-$$1 $$^\circ$$0C^$$-$$1]

0.147$$^\circ$$ C

14.76$$^\circ$$ C

1.476$$^\circ$$ C

0.014$$^\circ$$ C

JEE Main 2021 (Online) 27th August Morning Shift

MCQ (Single Correct Answer)

-1

A balloon carries a total load of 185 kg at normal pressure and temperature of 27$$^\circ$$C. What load will the balloon carry on rising to a height at which the barometric pressure is 45 cm of Hg and the temperature is $$-$$7$$^\circ$$C. Assuming the volume constant?

181.46 kg

214.15 kg

219.07 kg

123.54 kg

PREVIOUS NEXT

Questions Asked from Heat and Thermodynamics (MCQ (Single Correct Answer))

Number in Brackets after Paper Indicates No. of Questions