Chapter 18: Q. 2 (page 510)
The sample in an experiment is initially at 10 C. If the sample’s
temperature is doubled, what is the new temperature in C?
Temperature is a property of system
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To determine the mass of neon contained in a rigid, cylinder, you vary the cylinder’s temperature while recording the reading of a pressure gauge. Your data are as follows:
| Temperature (°C) | Pressure gauge (atm) |
| 100 | 6.52 |
| 150 | 7.80 |
| 200 | 8.83 |
| 250 | 9.59 |
Use the best-fit line of an appropriate graph to determine the mass of the neon.
A nebula—a region of the galaxy where new stars are forming—contains a very tenuous gas with . This gas is heated to by ultraviolet radiation from nearby stars. What is the gas pressure in atm?
A diving bell is a -tall cylinder closed at the upper end but open at the lower end. The temperature of the air in the bell is . The bell is lowered into the ocean until its lower end is deep. The temperature at that depth is .
a. How high does the water rise in the bell after enough time has passed for the air inside to reach thermal equilibrium?
b. A compressed-air hose from the surface is used to expel all the water from the bell. What minimum air pressure is needed to do this?
What is the number density of (a) aluminium and (b) lead?
1.0 mol of gold is shaped into a sphere. What is the sphere’s
diameter?
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