The rms speed of the molecules of a gas of density 4 kgm-3 and pressure 1.2 ×105×Nm-2 is;

(a) 120 ms-1
(b) 300 ms-1
(c) 600 ms-1
(d) 900 ms-1

Subtopic:  Molecular Velocity |
 78%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

4.0 g of argon gas pressure P and temperature T K in a vessel. On increasing the temperature by 50o, 0.8 g of argon was given out to maintain the pressure P.

The original temperature was:

1. 73 K 

2. 100 K

3. 200 K 

4. 510 K 

Subtopic:  Ideal Gas Law |
 65%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Correct statement regarding the heating of a liquid is - 

1. Surface tension increases

2. Surface tension is lowered

3. Viscosity increases

4. Surface tension is not affected

Subtopic:  Liquefaction of Gases & Liquid |
 73%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following laws leads us to arrive at the conclusion that 1 g-molecule of each gas at STP occupies a volume of 22.4 L?

1. Dalton's law

2. Law of combining volumes

3. Avogadro's law

4. Boyle's law

Subtopic:  Gas Laws |
 74%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

0.1 mole of gas absorbs 41.75 J of heat, the rise in temperature occurs 20°C, the gas must be

(1) Triatomic

(2) Diatomic

(3) Monoatomic

(4) (2) and (3) both

Subtopic:  Kinetic Theory of Gas |
 57%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Van der Waals real gas, act as an ideal gas, at :

(1) High temperature, low pressure.

(2) Low temperature, high pressure.

(3) High temperature, high pressure.

(4) Low temperature, low pressure.

Subtopic:  van der Waal’s Correction |
 84%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

By the ideal gas law the pressure of 0.60 mol NH3 gas in a 3.00 litre vessel at 25°C is

(1) 48.9 atm

(2) 4.89 atm

(3) 0.489

(4) 489 atm

Subtopic:  Ideal Gas Law |
 77%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The pressure of a mixture of 4 g of O2 and 2 g of H2 confined in a bulb of 1.0 L capacity at 0°C

(1) 25.18 atm

(2) 31.205 atm

(3) 40.215 atm

(4) 15.210 atm

Subtopic:  Ideal Gas Law |
 80%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The volume occupied by 9.0 g of nitrogen gas at 300 K and 750 mmHg pressure is

(1) 5.854

(2) 6.7432

(3) 8.8462

(4) 8.0225

Subtopic:  Ideal Gas Law |
 61%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The rms velocity of CO2 at a temperature T (in Kelvin) is X cm sec-1. At what temperature (in Kelvin), the rms velocity of nitrous oxide would be 4 X sec-1?

( Atomic weights of C, N, and O are respectively 12, 14 and 16)

(1) 16T

(2) 2T

(3) 4T

(4) 32T

Subtopic:  Molecular Velocity |
 74%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints