Thermal Properties of Matter Test

Result

Thermal Properties of Matter Test - 57

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Question 1
4 / -1

Steam is passed into 22 g of water at 20^o. The mass of water that will be present when the water acquires a temperature of 90^oC (Latent heat of steam is 540 cal/g) is

A
24.8 g

B
24 g

C
36.6 g

D
30 g

Solution
Question 2
4 / -1

The graph AB shown in figure is a plot of temperature of a body in degree celsius and degree Fahrenheit. Then,

A
Slope of line AB is 9/5

B
Slope of line AB is 5/9

C
Slope of line AB is 1/9

D
Slope of line AB is 3/9

Solution
Question 3
4 / -1

The graph shows the variation of temperature (T) of one kilogram of a material with the heat (H) supplied to it. At O, the substances is in solid state. From the graph, we can conclude that

A
T₂ is the melting point of the solid

B
BC represents the change of state of state from solid to liquid

C
(H₂ – H₁) represents the latent heat of fusion of the substances

D
(H₃ – H₁) represents the latent heat of vaporisation of the liquid

Solution
Question 4
4 / -1

A block of ice at –10^oC is slowly heated and converted to steam at 100^oC. Which of the following curves represents the phenomenon qualitatively?

A

B

C

D
Question 5
4 / -1

The portion AB of the indicator diagram representing the state of matter denotes

A
The liquid state of matter

B
Gaseous state of matter

C
Change from liquid to gaseous state

D
Change from gaseous state to liquid state
Question 6
4 / -1

The figure given below shows the cooling curve of pure wax material after heating. It cools from A and B and solidifies along BD. If L and C are respectively values of latent heat and the specific heat of the liquid wax, the ratio L/C is

A
40

B
80

C
100

D
20

Solution
Question 7
4 / -1

A solid substances is at 30^oC. To this substance heat energy is supplied at a constant rate. Then, temperature versus time graph is as shown in the figure. The substance in liquid state for the portion (of the graph) is

A
BC

B
CD

C
ED

D
EF
Question 8
4 / -1

The variation of density of water with temperature is represented by the

A

B

C

D
Question 9
4 / -1

If a graph is plotted taking the temperature in Fahrenheit along Y–axis and the corresponding temperature in Celsius along the X–axis, it will be a straight line

A
Having a +ve intercept on Y–axis

B
Having a +ve intercept on X–axis

C
Passing through the origin

D
Having a –ve intercepts on both the axis

Solution
Question 10
4 / -1

Which of the curves in figure represents the relation between Celsius and Fahrenheit temperatures?

A
1

B
2

C
3

D
4

Solution