Watch the video and answer the following:

Which fluid has LOWER surface tension ?

Source: YouTube

Question

Watch the video and answer the following:

Which fluid has LOWER surface tension ?

Source: YouTube

BlackTom AI · Accepted Answer

When considering surface tension values at room temperature, different liquids behave distinctly due to molecular cohesion and intermolecular forces.
Option 1: Ethanol — This is the correct choice. Ethanol has a notably lower surface tension than water because its molecular structure results in weaker cohesive forces at the surface, leading to a smaller energy cost to create new surface area. In practical terms, ethanol’s surface tension is around 22 mN/m, much less than water’s.
Option 2: Both have Equal Surface Tension — This is inaccurate. Water and ethanol do not share the same surface tension; water’s surface tension is significantly higher due to stronger hydrogen bonding among water molecules compared to ethanol.
Option 3: Water — This choice is incorrect if the question asks which has lower surface tension. Water has a relatively high surface tension (about 72–73 mN/m at room temperature) due to extensive hydrogen bonding, so it is not the fluid with the lower value.
Option 4: Insufficient Information — This is not true here. The question provides enough context by asking to compare ethanol and water’s surface tension, and standard reference values show ethanol has the lower surface tension. The premise does not require additional data beyond standard physical properties to determine which is lower.

Watch the video and answer the following: Which fluid has LOWER surface tension ? Source: YouTube单项选择题

类似问题

Which of the following properties of water is shown here (a steel paper clip floating on water)?

Which of the following properties of water is shown here (a steel paper clip floating on water)?

Question at position 8 An excess of growth hormone (GH) before puberty can result in the development ofgigantism.Graves' disease.acromegaly.pituitary dwarfism.Clear my selection

Question at position 6 The most abundant supporting cells in the central nervous system are called Question Blank 1 of 1[input].

Question at position 5 In the eye, the lens functions tofocus light on the retina at the back of the eye.protect the surface of the eye.increase vision in low-light conditions.move the eye side to side.Clear my selection

Question at position 4 Olfactory (odor) receptors are chemoreceptors. TrueFalse

If the pKa of HCHO2 is 3.74 and the pH of an HCHO2/NaCHO2 solution is 3.00, which of the following is TRUE?

Identify the missing particle in the following nuclear equation: 92 236 𝑈 → 38 90 𝑆 𝑟 + ? + 2 0 1 𝑛 + 4 0 0 𝑔

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单