Please look at this. There are 2 questions I need help with. Can someone please answer them? **Question 27: The meniscus of water curves upward in a glass tube forming a "U" shape. This means:**a. water has a low surface tension b. water tends to cover the greatest possible area of the glass c. the cohesive forces between water molecules are stronger than the adhesive forces between water and glass d. the adhesive forces between water molecules and glass are stronger than the cohesive forces between water molecules e. water has a large capillary action **Question 28: In which of the following would the boiling point of water be lowest?**a. in New York City, where the pressure is about 760 Torr b. in a pressure cooker, where the pressure is 1400 Torr c. in the “mile high” city of Denver d. in New Mexico, where the pressure is about 710 Torr e. at the peak of Mt. Everest

Since your question has multiple parts, we will answer the first question for you. If you want residual parts to be answered, then please resubmit the entire question and mention those parts you want us to answer. When water is placed in a glass tube, a U-shaped curve is formed on the top of the water layer. This layer is called the meniscus of water.Water molecules have two types of forces, cohesive forces, and adhesive forces. Cohesive force means the attraction of the water molecule with other water molecules. It is because of hydrogen bonding present in the water. When water molecules stick to other surfaces, this attraction force is called adhesive forces. The cohesive forces of water are responsible for the surface tension of water and adhesive forces are responsible for the capillary action of water. The water molecules stick to the molecules of glass more than themselves because of more polarity of glass molecules. Hence for the formation of a U-shaped curve, the adhesive forces should be greater than cohesive forces. This causes the climbing of the water and formation of a U shaped curve. Option d is the correct answer.