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Question

Q1. For most liquids, viscosity increases with increasing:

1. Pressure
2. Temperature
3. Surface tension

Select the correct option from codes given below:

1 & 3 Only

2 & 3 Only

3 Only

1, 2 & 3

Accepted Answer

Answer : 1 & 3 Only

In liquids main cause of viscosity is cohesion between the molecules. As the temperature of a liquid increases, its surface tension decreases.The viscosity of liquids reduce with increase in temperature.
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