Thermal Properties of Matter Test

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Thermal Properties of Matter Test - 18

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Weekly Quiz Competition

Question 1
4 / -1

Kerosene oil rises up in a wick of a lantern because of

A
diffusion of the oil through the wick

B
surface tension

C
buoyant force of air

D
the gravitational pull of the wick.
Question 2
4 / -1

At critical temperature, the surface tension of a liquid is

A
zero

B
infinity

C
the same as that at any other temperature

D
cannot be determined
Question 3
4 / -1

When a pinch of salt or any other salt which is soluble in water is added to water, its, surface tension

A
increases

B
decreases

C
may increase of decrease depending upon salt

D
none of the above.
Question 4
4 / -1

The force of viscosity is

A
gravitational

B
weak

C
electromagnetic

D
nuclear
Question 5
4 / -1

Rain drops fall from a great height under gravity-Check the correct statement:

A
Their velocity continuously increases till they hit the earth with the same final velocity

B
They fall with a terminal velocity which is different for drops of different sizes

C
They fall with a terminal velocity which is the same for every drop

D
Their velocity goes on increasing continuously till they hit the earth, and the final velocity of each drop is different.
Question 6
4 / -1

The coefficient of viscosity for hot air is

A
greater than the coefficient of viscosity for cold air

B
smaller than the coefficient of viscosity for cold air

C
same as the coefficient of viscosity for cold air

D
increases or decreases depending on the external pressure.

Solution
Question 7
4 / -1

In Bernoulli’s theorem which of the following is conserved

A
mass

B
linear momentum

C
energy

D
angular momentum.
Question 8
4 / -1

The unit of the universal gas constant in S.I. system is

A
calories per degree Celsius

B
joule per mole

C

D
Joule per kg.
Question 9
4 / -1

The relation PV = RT can describe the behaviour of a real gas at

A
high temperature and high density

B
high temperature and low density

C
low temperature and low density

D
low temperature and high density
Question 10
4 / -1

A gas in container A is thermal equilibrium with another gas of the same mass in container B. If we denote the corresponding pressures and volumes by the suffixes A and B then which of the following statements is most likely to be true

A
P_A = P_B, V_A ≠ V_B

B
P_A ≠ P_B, V_A = V_B

C
P_A / V_B= P_B / V_B

D
P_A V_A = P_B V_B

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Re-Attempt Weekly Quiz Competition

Thermal Properties of Matter Test - 18

Result

Thermal Properties of Matter Test - 18

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SHARING IS CARING

Question 1

diffusion of the oil through the wick

surface tension

buoyant force of air

the gravitational pull of the wick.

Question 2

zero

infinity

the same as that at any other temperature

cannot be determined

Question 3

increases

decreases

may increase of decrease depending upon salt

none of the above.

Question 4

gravitational

weak

electromagnetic

nuclear

Question 5

Their velocity continuously increases till they hit the earth with the same final velocity

They fall with a terminal velocity which is different for drops of different sizes

They fall with a terminal velocity which is the same for every drop

Their velocity goes on increasing continuously till they hit the earth, and the final velocity of each drop is different.

Question 6

greater than the coefficient of viscosity for cold air

smaller than the coefficient of viscosity for cold air

same as the coefficient of viscosity for cold air

increases or decreases depending on the external pressure.

Solution

Question 7

mass

linear momentum

energy

angular momentum.

Question 8

calories per degree Celsius

joule per mole

Joule per kg.

Question 9

high temperature and high density

high temperature and low density

low temperature and low density

low temperature and high density

Question 10

PA = PB, VA ≠ VB

PA ≠ PB, VA = VB

PA / VB= PB / VB

PA VA = PB VB

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P_A = P_B, V_A ≠ V_B

P_A ≠ P_B, V_A = V_B

P_A / V_B= P_B / V_B

P_A V_A = P_B V_B