Specific Heat Capacity of a Given (i) Solid and (ii) Liquid by Method of Mixtures NEET Questions

Physics - Experimental Skills

Specific Heat Capacity of a Given (i) Solid and (ii) Liquid by Method of Mixtures MCQ Questions


13.
Why does water have unusually high specific heat capacity?
A.
Water is transparent
B.
Water is heavy
C.
Strong hydrogen bonds require significant energy to disrupt before motion increases
D.
Water is liquid
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ANSWER :
C. Strong hydrogen bonds require significant energy to disrupt before motion increases
14.
Heat capacity (or thermal capacity) of a body is:
A.
C = m + s
B.
C = m × T
C.
C = s/m
D.
C = m × s = total heat needed to raise its temperature by 1°C (or 1 K)
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ANSWER :
D. C = m × s = total heat needed to raise its temperature by 1°C (or 1 K)
15.
Heat absorbed (or released) by a body of mass m, specific heat capacity s, when temperature changes by ΔT, is:
A.
Q = m × s × ΔT
B.
Q = m × s + ΔT
C.
Q = s × ΔT/m
D.
Q = m × s/ΔT
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ANSWER :
A. Q = m × s × ΔT
16.
Specific heat depends on:
A.
Pressure only
B.
Nature of the substance and its temperature
C.
Volume only
D.
Mass of the substance only
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ANSWER :
B. Nature of the substance and its temperature
17.
If the same amount of heat is given to equal masses of water and copper, the:
A.
Water rises more
B.
Water becomes colder
C.
Both rise equally
D.
Water rises in temperature less than copper (since s_water > s_copper)
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ANSWER :
D. Water rises in temperature less than copper (since s_water > s_copper)
18.
Why does water on the seashore moderate temperature variations?
A.
Water reflects sunlight
B.
Sand is hot
C.
Water's high specific heat absorbs/releases heat with small T changes, stabilising local temperature
D.
Air is dense
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ANSWER :
C. Water's high specific heat absorbs/releases heat with small T changes, stabilising local temperature