Properties Of Solids And Liquids Question 137
Question: Assertion : The viscosity of liquid increases rapidly with rise of temperature. Reason : Viscosity of a liquid is the property of the liquid by virtue of which it opposes the relative motion amongst its different layers.
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: E
Solution:
The viscosity of liquid decreases rapidly with rise of temperature.
The variation of viscosity of liquid with temperature is given by $ {\eta _{t}}={\eta _{0}}(1+\alpha t+\beta t^{2}) $
Where $ {\eta _{t}} $ and $ {\eta _{0}} $ are the coefficient of viscosities at t°C and 0°C respectively and a and b are constant.
