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The following physics responses are provided by a student and, as such, should be considered in that context. While every effort is made for accuracy, absolute correctness cannot be fully guaranteed.
| C | I | Question | Answer |
|---|---|---|---|
| 10 | An automobile gas tank is filled to its capacity of 15.00 gallons with the gasoline at an initial temperature of 10°C. The automobile is parked in the sun causing the gasoline's temperature to rise to 60°C. If the coefficient of volume expansion for gasoline is 9.6*10^-4/C°, what volume runs out the overflow tube? Assume the change in volume of the tank is negligible. | 0.72 gallons | |
| 10 | An ideal gas is confined to a container with adjustable volume. The number of moles and temperature are constant. By what factor will the volume change if pressure triples? | 1/3 | |
| 10 | An ideal gas is confined to a container with adjustable volume. The pressure and mole number are constant. By what factor will volume change if absolute temperature triples? | 3.0 | |
| 10 | An ideal gas is confined to a container with constant volume. The number of moles is constant. By what factor will the pressure change if the absolute temperature triples? | 3.0 | |
| 10 | An interval of one Celsius degree is equivalent to an interval of: | one kelvin | |
| 10 | As a copper wire is heated, its length increases by 0.100%. What is the change of the temperature of the wire? (αCu = 16.6*10^-6/C°) | 60.2°C | |
| 10 | At 20°C an aluminum ring has an inner diameter of 5.000 cm, and a brass rod has a diameter of 5.050 cm. Keeping the brass rod at 20°C, which of the following temperatures of the ring will allow the ring to just slip over the brass rod? αAl = 2.4*10^-5/C° αbrass = 1.9*10^-5/C° | 437°C | |
| 10 | At room temperature, the coefficient of linear expansion for Pyrex glass is ____ that for ordinary glass. | less than | |
| 10 | At what temperature is the same numerical value obtained in Celsius and Fahrenheit? | -40° | |
| 10 | Between 0° and 4°C, the volume coefficient of expansion for water: | is negative. | |
| 10 | Boltzmann's constant, kB, may be derived as a function of R, the universal gas constant, and NA, Avogadro's number. Which expresses the value of kB? | R/NA | |
| 10 | Carbon dioxide forms into a solid (dry ice) at approximately -157°F. What temperature in degrees Celsius does this correspond to? | -105°C | |
| 10 | Consider two containers with the same volume and temperature. Container One holds "dry" air—a mixture of nitrogen and oxygen. Container Two holds "moist" air. The "moist" air has the same ratio of nitrogen to oxygen molecules, but also contains water vapor. According to the ideal gas law, if the pressures are equal, the weight of the gas in Container One will be: | heavier than the gas inside the second container. | |
| 10 | Different units can be used for length: m and cm, and of these two, m is the larger by a factor of 100. Different units can also be used for R: (1) J/mol*K, (2) L*atm/mol*K, and (3) (N/m^2)*m3/mol*K. Which of these units for R is the largest? Hint: When expressing R in each of these units, which expression has the lowest numerical factor? (1L = 10-3 m3, 1 atm = 1.01*10^5 Pa) | (2) L*atm/mol*K | |
| 10 | Estimate the volume of a helium-filled balloon at STP if it is to lift a payload of 500 kg. The density of air is 1.29 kg/m^3 and helium has a density of 0.178 kg/m^3 | 450 m^3 |
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