NEET 2018 | Heat and Thermodynamics Question 22 | Physics

NEET 2018

MCQ (Single Correct Answer)

-1

At what temperature will the rms speed of oxygen molecules become just sufficient for escaping from the Earth’s atmosphere?
(Given : Mass of oxygen molecule (m) = 2.76 × 10^–26 kg, Boltzmann’s constant k_B = 1.38 × 10^–23 J K^–1)

2.508 × 10⁴ K

8.360 × 10⁴ K

5.016 × 10⁴ K

1.254 × 10⁴ K

NEET 2017

MCQ (Single Correct Answer)

-1

Thermodynamic processes are indicated in the following diagram.

NEET 2017 Physics - Heat and Thermodynamics Question 74 English

Match the following

Column-1		Column-2
P.	Process I	A.	Adiabatic
Q.	Process II	B.	Isobaric
R.	Process III	C.	Isochoric
S.	Process IV	D.	Isothermal

P $$ \to $$ C, Q $$ \to $$ A, R $$ \to $$ D, S $$ \to $$ B

P $$ \to $$ C, Q $$ \to $$ D, R $$ \to $$ B, S $$ \to $$ A

P $$ \to $$ D, Q $$ \to $$ B, R $$ \to $$ A, S $$ \to $$ C

P $$ \to $$ A, Q $$ \to $$ C, R $$ \to $$ D, S $$ \to $$ B

NEET 2017

MCQ (Single Correct Answer)

-1

A carnot engine having an efficiency of $${1 \over {10}}$$ as heat engine, is used as a refrigerator. If the work done on the system is 10 J, the amount of energy absorbed from the reservoir at lower temperature is

90 J

99 J

100 J

1 J

NEET 2017

MCQ (Single Correct Answer)

-1

A gas mixture consists of 2 moles of O₂ and 4 moles of Ar at temperature T. Neglecting all vibrational modes, the total internal energy of the system is

15 RT

9 RT

11 RT

4 RT

PREVIOUS NEXT

NEET Subjects

Biology

Botany

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution