States of Matter (NEET Chemistry): Questions 49 - 54 of 104

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1110 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 450.00 or

Question number: 49

» States of Matter » Gaseous State » Concept of Average, Root Mean Square and Most Probable Velocities

MCQ▾

Question

The root mean square speed at NTP of the species can be calculated from the expression?

Choices

Choice (4) Response

a.

3PVM

b.

3RTM

c.

3Pd

d.

All a. , b. and c. are correct

Question number: 50

» States of Matter » Liquid State » Surface Tension

MCQ▾

Question

When there is a rise in temperature the surface tension will be?

Choices

Choice (4) Response

a.

Decreases

b.

Increase

c.

Does not vary

d.

None of the above

Question number: 51

» States of Matter » Gaseous State » Kinetic Theory of Gases

MCQ▾

Question

What is average kinetic energy per mole of CO2 gas at 27℃ in ergs (units)?

Choices

Choice (4) Response

a.

3.741×10-10 erg

b.

374×108 erg

c.

374×10-8 erg

d.

3.741×1010 erg

Question number: 52

» States of Matter » Gaseous State » Concept of Absolute Scale of Temperature

MCQ▾

Question

The critical temperature of gas is that temperature?

Choices

Choice (4) Response

a.

at which the volume of the gas becomes zero

b.

above which it can no longer remain in the gaseous state

c.

at which it solidifies

d.

above which it cannot be liquefied by pressure

Question number: 53

» States of Matter » Gaseous State » Gas Laws - Boyle's Law, Charle's Law, Graham's Law of Diffusion

MCQ▾

Question

A sample of gas occupies 10 lit under a pressure of 1 atm. If the temperature of the gas does not change, what will be its volume if the pressure is increased to 2 atm?

Choices

Choice (4) Response

a.

6 litre

b.

6.4 litre

c.

5 litre

d.

4 litre

Question number: 54

» States of Matter » Solid State » Packing in Solids (Fcc, Bcc and Hcp Lattices)

MCQ▾

Question

The density of KCl is 1.9893g/cm3 and the length of a side of unit cell is 6.2908 A° as determined by X-ray diffraction. Calculate the value of Avogadro’s number?

Choices

Choice (4) Response

a.

6.027×1022

b.

6.027×1023

c.

6.017×1023

d.

6.017×1023

f Page
Sign In