I read this background article the other day: Vapor pressure is a measure of the pressure exerted by a gas above a liquid in a sealed container. While viscosity and surface tension increase as the strength of intermolecular forces increase, vapor pressure decreases . This is because the stronger the intermolecular forces are, the harder it is for liquid molecules to escape into the gas phase. Vapor pressure a measure of how much of a substance is in the gas phase when that substance is at equilibrium; that is, the number of molecules in the gas and liquid phases are not changing. The more molecules that are able to escape into the gas phase, the higher the vapor pressure. Vapor pressure is also proportional to temperature. As temperature increases, vapor pressure also increases.  I am facing a new situation today: As a part of his engineering job Keith is measuring the vapor pressure of two locomotives, engine A and engine B.  Engine A has a high vapor pressure, but engine B has a low vapor pressure. He noticed that to increase the speed of the engines he needed to increase the vapor pressure.  Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which engine's liquid would have stronger intermolecular forces, engine A or engine B?
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Answer: engine B


I read this background article the other day: An allergy is a disease in which the immune system makes an inflammatory response to a harmless antigen . Any antigen that causes an allergy is called an allergen. Allergens may be inhaled or ingested, or they may come into contact with the skin. Two common causes of allergies are shown in Figure below . Inhaling ragweed pollen may cause coughing and sneezing. Skin contact with oils in poison ivy may cause an itchy rash. Other common causes of allergies include dust mites, mold, animal dander, insect stings, latex, and certain food and medications. Symptoms of a common allergy such as pollen can include sneezing, a runny nose, nasal congestion and itchy, watery eyes.  I am facing a new situation today: Two roommates, Karen and Kelly, have decided to adopt a pet for their apartment. They are debating between getting a dog or a cat when they decide to flip a coin since they can't agree. The coin comes up tails so they are getting a cat. Unbeknownst to Karen, she is allergic to cats. Kelly has no allergies to animals, but Karen has never lived with cats before so she isn't aware that she is allergic to them.  Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Will Karen's eyes be more or less itchy than Kelly's eyes?
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Answer: more


I read this background article the other day: Almost all earthquakes occur at plate boundaries. All types of plate boundaries have earthquakes. Convection within the Earth causes the plates to move. As the plates move, stresses build. When the stresses build too much, the rocks break. The break releases the energy that was stored in the rocks. The sudden release of energy is an earthquake. During an earthquake the rocks usually move several centimeters. Rarely, they may move as much as a few meters. Elastic rebound theory describes how earthquakes occur ( Figure below ).  I am facing a new situation today: Geologists have been contemplating on the question - why some places are more susceptible to earthquakes. To understand the differences, they have made a chart where they divided the earth into two regions, region A and region B. In region A many earthquakes happen, but in region B no earthquakes happen.  Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Would region B be near or further from a plate boundary?
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Answer:
further