Question:
When temperature of water is increased from 0°C to 40°C, the viscosity of water is:
When temperature of water is increased from 0°C to 40°C, the viscosity of water is:
Show Hint
Viscosity of liquids decreases with temperature.
Viscosity of gases increases with temperature.
Water viscosity: 1.0 cP at 20°C, 0.65 cP at 40°C.
Viscosity of gases increases with temperature.
Water viscosity: 1.0 cP at 20°C, 0.65 cP at 40°C.
Updated On: Aug 25, 2026
- Increased
- Decreased
- Not changed
- Not predicted
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
Viscosity is the resistance of a fluid to flow.
Step 2: Detailed Explanation:
For liquids, viscosity decreases with increasing temperature.
As temperature increases, the intermolecular forces weaken.
Molecules have higher kinetic energy and move more freely.
This results in decreased viscosity.
For water:
- At 0°C: Viscosity is 1.79 cP (centipoise).
- At 40°C: Viscosity is 0.65 cP.
Thus, viscosity decreases when temperature increases from 0°C to 40°C.
Step 3: Final Answer:
Thus, the viscosity of water decreases when temperature is increased from 0°C to 40°C.
[0.5cm]
Viscosity is the resistance of a fluid to flow.
Step 2: Detailed Explanation:
For liquids, viscosity decreases with increasing temperature.
As temperature increases, the intermolecular forces weaken.
Molecules have higher kinetic energy and move more freely.
This results in decreased viscosity.
For water:
- At 0°C: Viscosity is 1.79 cP (centipoise).
- At 40°C: Viscosity is 0.65 cP.
Thus, viscosity decreases when temperature increases from 0°C to 40°C.
Step 3: Final Answer:
Thus, the viscosity of water decreases when temperature is increased from 0°C to 40°C.
[0.5cm]
Was this answer helpful?
0
0
Top ICAR AIEEA Water Science and Technology Questions
- The optimum temperature ($^{\circ}$C) for germination of wheat is
- Wheat varieties with initial HD are developed by
- Groundnut is also known as
- Which of the following planting method is not related to sugarcane crop?
- Read the following statements about ICAR Institutes.
(A). ICAR - Indian Institute of Sugarcane Research is located at Lucknow
(B). ICAR- Indian Institute of Pulses Research is located in Hyderabad
(C). ICAR- Central Research Institute for Dryland Agriculture is located at Jodhpur
(D). ICAR- Indian Institute for Soybean Research is located at Indore
(E). ICAR- Indian Institute of Water Management is located at Bhubaneswar
Choose the correct answer from the options given below:
View More Questions
Top ICAR AIEEA Basics of Soil Science Questions
- Read the following statements about black soils
(A). These have dark colour.
(B). These have high clay content.
(C). These have low CEC.
(D). These are rich in organic matter and nitrogen.
(E). These are normally suitable for cultivation of cotton.
Choose the correct answer from the options given below: - ______ is an index of the fractional pore space in soil that relates space to the volume of solids rather than to the total volume of the soil.
- A sample of moist soil with a wet mass of 1.0 kg and a volume of 0.64 liters (6.4 $\times$ 10$^{-4}$ m$^3$) was dried in the oven and found to have a dry mass of 0.8 kg. Assuming the typical value of particle density (2650 kg/m$^3$) for a mineral soil, what will be the volumetric moisture content?
- What is the equivalent depth of water contained in a soil profile of 1 m deep, if the mass wetness of the upper 0.4 m is 15% and that of the lower 0.6 m is 25%? Assume a bulk density of 1200 kg/m$^3$ in the upper layer and 1400 kg/m$^3$ in the lower layer.
- Which among the followings is the most appropriate statistical equivalent of the technique used in interpretation of soil texture from particle size data?
View More Questions
Top ICAR AIEEA Questions
- Which of the following statements is false?
- Which of the following is an example of an inventory?
- According to Adam Smith, productivity gains could be brought about through .
- The supply curve for an artificially scarce good is .
- Which of the following would not be considered an opportunity cost of paid employment?
View More Questions