NTS Chemistry Mcqs Online Test 5 Question Answers Start Below

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!

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!

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!

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 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!

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

Correct!

Wrong!

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

Correct!

Wrong!

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

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!

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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
    Here’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.