A monatomic ideal gas is cooled to one-half its original temperature during an isometric process. The final pressure of the gas
A) does not change.
B) decreases to half its original value.
C) increases to more than twice its original value.
D) increases to twice its original value.
B
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A 360-g metal container, insulated on the outside, holds 180.0 g of water in thermal equilibrium at 22.0°C. A 24.0-g ice cube, at the melting point, is dropped into the water, and when thermal equilibrium is reached the temperature is 15.0°C
Assume there is no heat exchange with the surroundings. For water, the specific heat capacity is 4190 J/kg ? K and the heat of fusion is 3.34 × 105 J/kg. What is the specific heat capacity of the metal of the container? A) 1700 J/kg ? K B) 970 J/kg ? K C) 2300 J/kg ? K D) 2800 J/kg ? K E) 3300 J/kg ? K
Describe some of the difficulties people have in making good longterm predictions
What will be an ideal response?
Two thin layers of material with different indices of refraction are coated on a glass plate. The outer first material has n1 = 1.404, the inner second material has n2 = 1.176, and the glass has nglass = 1.62 . If light is incident from air on the first layer, what is the phase change relative to that of the first layer reflection for light that reflects from the glass?
a. 180° c. 360° b. 540° d. 0°
Reactance: At what frequency will a 20.0-mH inductor have an inductive reactance of 100 ??
A. 225 Hz B. 655 Hz C. 796 Hz D. 457 Hz E. None of the other answers is correct.