Thermal Properties of Matter Test

Question 1
1 / -0

Equal masses of $$N_{2}$$ and $$O_{2}$$ gases are filled in vessel A and B. The volume of vessel B is double of A. The ratio of pressure in vessel A and B will be

A
16:7

B
16:14

C
32:7

D
32:28

Question 2
1 / -0

If the pressure of a gas contained in a closed vessel increases by x% when heated by 1$$^{0}$$C , its initial temperature is

A
$$\frac{100}{x}$$ Kelvin

B
$$\frac{100}{x}$$ Celsius

C
$$\frac{x+100}{x}$$ Kelvin

D
$$\frac{100-x}{x}$$ Celsius

Question 3
1 / -0

The pressure of a certain mass of gas at 27$$^{0}$$C is 84cm of Hg. If 25% of the gas is now introduced into the same vessel at the same temperature, the final pressure of the gas will be in cm of Hg

A
105

B
100

C
95

D
90

Question 4
1 / -0

A partially inflated balloon contains 500 m$$^{3}$$ of helium at 27$$^{0}$$ C and 1 atm pressure. The volume of the helium at an altitude of 6000 m, where the pressure is 0.5atm and the temperature is -3$$^{0}$$C is

A
22.4 lit

B
11.2 lit

C
900 m$$^{3}$$

D
50 m$$^{3}$$

Question 5
1 / -0

28gm of $$N_2$$ gas is contained in a flask at a pressure of 10atm and at a temperature of 57$$^{0}$$C. It is found that due to leakage in the flask, the pressure is reduced to half and the temperature reduced to 27$$^{0}$$C. The quantity of N$$_{2}$$ gas that leaked out is

A
$$\frac{5}{63}gm$$

B
$$\frac{63}{5}gm$$

C
$$\frac{11}{20}gm$$

D
$$\frac{20}{11}gm$$

Question 6
1 / -0

In a given species of tobbaco there is 0.1 mg of virus per c.c. The mass of virus is $$4 \times 10^{7}$$ Kg per kilomol. The number of the molecules of virus present in 1 c.c. will be

A
$$10^{13}$$

B
$$10^{11}$$

C
$$1.5 \times 10^{12}$$

D
$$10^{14}$$

Question 7
1 / -0

$$Assertion$$: gases are characterised with two coefficients of expansion
$$Reason$$: when heated both volume and pressure increase with the rise in temperature

A
Both assertion (A) and reason (R) are correct and R gives the correct explanation

B
Both assertion (A) and reason (R) are correct but R doesnt give the correct explanation

C
A is true but R is false

D
A is false but R is true

Question 8
1 / -0

Assertion: Gasses obey Boyle's law at high temperature and low pressure only.
Reason: At low pressure and high temperature, gasses would behave like ideal gases.

A
Both assertion (A) and reason (R) are correct and R gives the correct explanation

B
Both assertion (A) and reason (R) are correct but R does give the correct explanation

C
A is true but R is false

D
A is false but R is true

Question 9
1 / -0

Follwing operation are carried out on a sample of ideal gas initially at pressure P volume V and kelvin temperature T.
a) At constant volume, the pressure is increased fourfold.
b) At constant pressure, the volume is doubled
c) The volume is doubled and pressure halved.
d) If heated in a vessel open to atmosphere, one-fourth of the gas escapes from the vessel.
Arrange the above operations in the increasing order of final temperature.

A
a,b,c,d

B
c,b,a,d

C
b,a,d,c

D
c,d,b,a

Question 10
1 / -0

Assertion:With increase in temperature, the pressure of given gas increases
Reason:Increase in temperature causes decrease in no. of collision of molecules with walls of container.

A
Both assertion (A) and reason (R) are correct and R gives the correct explanation

B
Both assertion (A) and reason (R) are correct but R doesnt give the correct explanation

C
A is true but R is false

D
A is false but R is true

Submit Test

Thermal Propert...

Question 1

16:7

16:14

32:7

32:28

Question 2

$$\frac{100}{x}$$ Kelvin

$$\frac{100}{x}$$ Celsius

$$\frac{x+100}{x}$$ Kelvin

$$\frac{100-x}{x}$$ Celsius

Question 3

105

100

95

90

Question 4

22.4 lit

11.2 lit

900 m$$^{3}$$

50 m$$^{3}$$

Question 5

$$\frac{5}{63}gm$$

$$\frac{63}{5}gm$$

$$\frac{11}{20}gm$$

$$\frac{20}{11}gm$$

Question 6

$$10^{13}$$

$$10^{11}$$

$$1.5 \times 10^{12}$$

$$10^{14}$$

Question 7

Both assertion (A) and reason (R) are correct and R gives the correct explanation

Both assertion (A) and reason (R) are correct but R doesnt give the correct explanation

A is true but R is false

A is false but R is true

Question 8

Both assertion (A) and reason (R) are correct and R gives the correct explanation

Both assertion (A) and reason (R) are correct but R does give the correct explanation

A is true but R is false

A is false but R is true

Question 9

a,b,c,d

c,b,a,d

b,a,d,c

c,d,b,a

Question 10

Both assertion (A) and reason (R) are correct and R gives the correct explanation

Both assertion (A) and reason (R) are correct but R doesnt give the correct explanation

A is true but R is false

A is false but R is true

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