Thermal Expansion: A glass flask has a volume of 500 mL at a temperature of 20°C. The flask contains 492 mL of mercury at an equilibrium temperature of 20°C. The temperature is raised until the mercury reaches the 500 mL reference mark. At what temperature does this occur? The coefficients of volume expansion of mercury and glass are 18 × 10-5 K-1 (mercury) and 2.0 × 10-5 K-1 (glass).
A. 120°C
B. 110°C
C. 100°C
D. 140°C
E. 130°C
Answer: A
You might also like to view...
Potential Energy: A +7.5-nC point charge is 5.0 cm from a -9.4-µC point charge in your laboratory in California. How much work would you have to do if you left the +7.5-nC charge in the lab but took the -9.4-µC charge to New York City? (k = 1/4??0 = 9.0 × 109 N ? m2/C2)
Fill in the blank(s) with the appropriate word(s).
A solid concrete wall has dimensions 4.0 m × 2.4 m and is 30 cm thick. The thermal conductivity of the concrete is 1.3 W/m ? K, and it separates a basement from the ground outside
The inner surface of the wall is at 18°C, and the outside surface is at 6°C. How much heat flows through the wall every hour? A) 1.8 kJ B) 5.0 MJ C) 1.8 MJ D) 500 J E) 5.0 kJ
A block of wood has a density of 650 kg/m3 . When placed in water, what percent of the volume of the wood is above the surface?
a. 0, the block sinks. c. 35% b. 30% d. 65%
When ice melts, its temperature __________
Fill in the blank(s) with correct word