The temperature of an ideal gas in a sealed 0.40 m3 container is reduced from 400 K to 270 K. The final pressure of the gas is 30 kPA. The molar heat capacity at constant volume of the gas is 28.0 J/mol K. The work done by the gas is closest to
A) 0.00 kJ.
B) -19 kJ.
C) -25 kJ.
D) 19 kJ.
E) 25 kJ.
Question 2
An electronic game requires 6 V for operation. With a transformer it can be powered by a 120-V outlet. If the primary has 500 turns, the secondary has
A) 4 turns.
B) 25 turns.
C) 50 turns.
D) more than 50 turns.
E) none of the above
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When an engine overheats, often the coolant overflow container boils.
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Typical box used for the disposal of bagged, sealed, and autoclaved biological waste.