A certain ideal gas has a molar specific heat at constant pressure of 33.2 J/mol ? K. Its molar specific heat at constant volume is closest to which of the following values? (R = 8.31J/mol ? K)
A) 41.9 J/mol ? K
B) 16.6 J/mol ? K
C) 25.1 J/mol ? K
D) 24.9 J/mol ? K
E) 49.8 J/mol ? K
D
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Spiral and irregular galaxies have active star formation
a. True b. False Indicate whether the statement is true or false
The potential difference across a resistor R, and the current running through it, both increase. We know that resistance
1.decreases. 2.increases. 3.remains the same. 4.changes in ways we cannot determine with the information given.
Form when hot air near the surface rises quickly through a small pocket of cooler, low-pressure air above it
A. Waterspout |
B. Tropical Cyclones |
C. Tornado |
D. Lightning |
E. Great Red Spot |
F. Dust Devil |
A straw is used for a pea shooter. When you blow through the straw the speed of the emerging pea will be greater if the straw is
A) cut in half. B) full length. C) either cut in half or full length.