Question

Viscosity of gases ______ with temperature, whereas viscosity of liquid _____ with temperature.

Answer 1

Hint: In order to answer this question, to know the effects of temperature on the viscosity of gases and liquid separately, we will go through the whole concept of viscosity of a fluid and of a gas. We will discuss more about the viscosity.

Complete answer:
The viscosity of gases increases with temperature, whereas the viscosity of liquids decreases with temperature. The intermolecular forces weaken with temperature so the viscosity goes down. With an increase in temperature, there is typically an increase in the molecular interchange as molecules move faster in higher temperatures.
The viscosity of a fluid is a measure of its resistance to deformation at a given rate. For liquids, it corresponds to the informal concept of "thickness": for example, syrup has a higher viscosity than water.
Viscosity can be conceptualized as measuring the inside frictional power that emerges between contiguous layers of liquid that are in relative movement. For example, when a thick liquid is constrained through a cylinder, it streams more rapidly close to the cylinder's pivot than close to its dividers. In such a case, tests show that some pressure, (for example, a pressing factor distinction between the two finishes of the cylinder) is expected to support the move through the cylinder. This is on the grounds that a power is needed to beat the contact between the layers of the liquid which are in relative movement. So for a cylinder with a consistent pace of stream, the strength of the remunerating power is corresponding to the liquid's viscosity.

Note:
The temperature effect on viscosity is different for liquid and gas. The viscosity of the liquid tends to decrease with the temperature increase while in gases viscosity increases with rising temperature. The warmer the gas, the slower it flows.