Question

O GASES, LIQUIDS AND SOLIDS Understanding consequences of importa... Liquid A is known to have a lower viscosity and lower vapor pressure than Liquid B. Use these facts to predict the result of each experiment in the table below, if you can. experiment predicted outcome Ov will be greater than VB VA will be less than VB 10.0 mL of Liquid A are poured into a beaker. 10.0 mL of Liquid B are poured into another beaker. After 90 minutes have passed, the volumes V and VB of liquid in each beaker are measured. OV, will be equal to V It's impossible to predict whether or V, will be greater without more information. will be greater than to twill be less than to 10.0 mL each of Liquid A and Liquid B are poured through a funnel, and the times 1 and te needed to pour each liquid through the funnel are measured. A will be equal to tB It's impossible to predict whether tort will be greater without more information. x 6 ?

Answer 1

Experiment	Predicted outcome
10.0 ml of liquid A are poured into beaker.10.0 ml of liquid B are poured into another beaker.After 90 minutes have passed, the volumes VA and V B of liquid in each beaker are measured.	$\bullet$ V A will be greater than V B
10.0 ml each of liquid A and liquid B are poured through the funnel , and times t A and t B are measured.	$\bullet$ t A will be less than t B

Explanation

PART 1

Liquid A have lower vapor pressure than liquid B. From this it is clear that , liquid B will be more vaporized than liquid A. Due to this , volume of liquid B will be less than volume of liquid A after 90 minutes. Hence answer is  V _A will be greater than V _B.

PART 2

Viscosity is a property of fluids. Fluids are substances which can flow. Fluids are liquids and gases,

Viscosity is a force opposition between two succesive layers of fluid.

Liquids having high viscosity have low flow rate and liquids having low viscosity have high flow rate.

In our case, Viscosity of liquid A is lower and hence its flow rate will be more than liquid B.

Therefore, when liquid A and liquid B are poured through funnel liquid A will require less time to pass through funnel than liquid B.

Hence, answer is t _A will be less than t _B.