Explanation
Melting point of ice decreases with increase in pressure.
θ = m.c∆θ ; if ∆θ = 1k then θ = mc = Thermal capacity
Thermostat is used in electric opporatas like refrigerator iron etc for automatic cut off Therefore for metallic strips to bend on heating their coefficient of linear expansion should be different.
If bath assertion and reason are true and the reason is the correct explanation of the assertion.
Cohesive force > Adhesive force, so shape of liquid surface near the solid would be convex.
For example mercury surface in glass capillary is convex.
Because surface tension of water > surface tension of oil.
Surface tension pulls the plates towards each other
Cohesive force decreases so angle of contact decreases.
Tangent drawn at point of contact makes 90° with wall of container.
Both liquids water and alcohol have same nature (i.e., wet the solid). Hence angle of contact for both is acute.
Water rises in plant fibres due to capillarity.
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