In an experiment to measure the thermal conductivity of a certain material, a slab of material 10.0 mm thick separates a steam chamber from a block of ice with a square cross-section of 8.00 cm × 8.00 cm
In 5.00 minutes of running the experiment, 64.0 g of ice have melted. What is the coefficient of thermal conductivity of this material? The latent heat of fusion of water is 33.5 × 104 J/kg.
A) 0.130 W/m/K
B) 0.250 W/m/K
C) 0.440 W/m/K
D) 0.620 W/m/K
E) 1.10 W/m/K
E
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What will be an ideal response?
A gas is expanded to twice its original volume with no change in its temperature. This process is
A) isothermal. B) isometric. C) isobaric. D) adiabatic. E) isentropic.
What is true of Mars?
A) Its atmosphere is mostly water vapor. B) Definite microfossils have been found. C) Its magnetic field is stronger than Earth's. D) Iron oxide on the surface is responsible for its reddish color. E) A pool of water was discovered by the Mars Rover.
A pane of red glass transmits primarily
A) red light. B) the complementary color of red light. C) all colors of light.