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chemistry- Attr. for
Chapter 7 Gas laws and attractive forces
Term | Definition |
---|---|
At the constant temperature and constant moles, the volume of gas is inversely proportion to> the pressure. This is which law? | Boyle's law |
pressure, and temperature of gas at constant volume and constant moles are | direct propositional |
London dispersion forces attractions between molecules depends on what two factors? | Molar mass and shape |
Oils are generally at room temperature and are obtained from | liquids; plants |
What type of lipid is predominantly found in cell membranes? | phospholipids |
A molecule that contains both polar and nonpolar regions is described as | Amphipathic |
The transition from the solid phase directly to the gas phase is called | sublimation |
What is the pressure of nitrogen in atmospheres of a sample that is at 745 mmHg? | 0.980 atm |
If a scuba diver's lungs have a normal capacity of 49Lat sea level (1.0 atm), what would be the volume of her lungs if the pressure at a depth of 50 ft is 975 mmHg? | 3.8 L |
A balloon originally had a volume of 4.39 Lat 44°C and a pressure of 729 torr. To what temperature must the balloon be cooled to reduce its volume to 3.78 L if the pressure is constant? | 0.0 C |
compare two compounds of similar molar mass in which A is comprised of nonpolar molecules and 8 composed of polar molecules. Which will boil at a high temperature? | B will boil at a higher temperature than A will. |
______attractions are the only ones that all molecules have regardless of what they are composed of. | London dispersion forces |
The long hydrocarbon tails of soap molecules are: | hydrophobic and repeal water |
A sample of oxygen at room temperature occupies a volume of 500. L at 1.75 atm and 25°C. What would be the volume of this gas at 2.50 atm at 56°C? | 386 L |