Thermal Properties of Matter Test

Result

Thermal Properties of Matter Test - 24

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Weekly Quiz Competition

Question 1
4 / -1

Two spheres made of same substance have diameters in the ratio 1:2. Their thermal capacities are in the ratio of

A
1 : 2

B
1 : 8

C
1 : 4

D
2 : 1

Solution
Question 2
4 / -1

Work done in converting one gram of ice at –10^o C into steam at 100^oC is

A
3045 J

B
6056 J

C
721 J

D
616 J

Solution
Question 3
4 / -1

Compared to a burn due to water at 100°C, a burn due to steam at 100°C is

A
More dangerous

B
Less dangerous

C
Equally dangerous

D
None of these
Question 4
4 / -1

Dry ice is

A
Ice cube

B
Sodium chloride

C
Liquid nitrogen

D
Solid carbon dioxide
Question 5
4 / -1

In supplying 400 calories of heat to a system, the work done will be

A
400 joules

B
1672 joules

C
1672 watts

D
1672 ergs
Question 6
4 / -1

The SI unit of mechanical equivalent of heat is

A
Joule × Calorie

B
Joule/Calorie

C
Calorie × Erg

D
Erg/Calorie

Solution
Question 7
4 / -1

A lead bullet of 10 g travelling at 300 m/s strikes against a block of wood and comes to rest. Assuming 50% of heat is absorbed by the bullet, the increase in its temperature is (Specific heat of lead = 150J/kg, K)

A
100°C

B
125°C

C
150°C

D
200°C

Solution
Question 8
4 / -1

Calorimeters are made of which of the following ?

A
Glass

B
Metal

C
Wood

D
Either (1) or (3)
Question 9
4 / -1

Triple point of water is

A
273.16°F

B
273.16 K

C
273.16°C

D
273.16R
Question 10
4 / -1

During constant temperature, we feel colder on a day when the relative humidity

A
25%

B
12.5%

C
50%

D
75%