NTS Chemistry Mcqs Online Test 5 Question Answers Start Below

The spreading of fragrance or scent in air is due to?
Diffusion .
Effusion
Attraction with air
Low dsensity

Correct!

Wrong!

One mole of an ideal gas at 546.5 K under 2 atm pressure has a volume of?
22.414 m3
44.828 dm3
22.414 dm3
11.212 cm3

Correct!

Wrong!

If 1/V is plotted on X-axis and pressure on Y-axis at constant temperature what should appear?
Straight line parallel to x-axis
Straight line parallel to y-axis
Straight line .
Curve

Correct!

Wrong!

The highest temperature at which a substance can exist as a liquid is called its?
Critical temperature
Standard temperature
Absolute temperature
Upper consulate temperature

Correct!

Wrong!

Which one is the right value for R?
.
0.0821 atm dm3k-1mol-
. 0.0821 atm m3k-1mol-1
2 cal k-1 mol-1
8.314 Nm2k-1mol-1

Correct!

Wrong!

The solid particles only posses?
Translational motion
Vibrational motion .
Rotational motion
All of above motions

Correct!

Wrong!

Which one is not the partial pressure of oxygen in the lungs?
.
0.1526 atm
116 mm of Hg
116 torr
1 atm

Correct!

Wrong!

The partial pressure exerted by the water vapours is called?
Surface tension
Aqueous tension .
Vapour pressure
Hydraulic pressure

Correct!

Wrong!

For a gas where volume and pressures are 1dm3 and 2 atm respectively what should be its new volume when pressure is increased to 6 atm at constant temperature?
1/2dm3
1/3dm3
1/4dm3
2/3dm3

Correct!

Wrong!

The kinetic molecular theory of gases was put forward in 1738 by?
Boltzman
Maxell
Clausius
Bernoulli

Correct!

Wrong!

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2 Comments

  1. The partial pressure exerted by the water vapours is called?

    Hydraulic pressure
    Surface tension
    Aqueous tension .
    Vapour pressure

    for this question, Vapour pressure is right answer
    Hereโ€™s a brief overview of the terms:

    Vapor Pressure: The pressure exerted by the vapor of a liquid in equilibrium with its liquid phase at a given temperature. It is the pressure of the water vapor present above the liquid in a closed system.

    Hydraulic Pressure: This refers to pressure in a fluid system, often related to hydraulic machinery or systems, not specifically to vapor.

    Surface Tension: This is the force per unit length experienced at the surface of a liquid due to intermolecular forces, not related to vapor pressure.

    Aqueous Tension: This term is less common but is sometimes used to refer to the tension or pressure related to water in specific contexts, but it is not a standard term for the partial pressure of water vapor.

    Thus, the correct term for the partial pressure exerted by water vapor is vapor pressure.