In which process will the internal energy of the system NOT change?
a. An adiabatic expansion of an ideal gas.
b. An isothermal compression of an ideal gas.
c. An isobaric expansion of an ideal gas.
d. The freezing of a quantity of liquid at its melting point.
e. The evaporation of a quantity of a liquid at its boiling point.
b
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A spool of thread has an average radius of 1.00 cm. If the spool contains 47.5 m of thread, how many turns of thread are on the spool? "Average radius" allows us to not need to treat the layering of threads on lower layers
a. 15.1 b. 756 c. 149 d. 7.56
A constant-volume gas thermometer has a pressure of 2.00 atm at 100°C. What would its pressure be at 0°C?
A. 0.732 atm B. 1.46 atm C. 1.24 atm D. 1.37 atm E. More information is needed to find the answer.
A man lifts a 20.0-kg bucket of concrete from the ground up to the top of a 20.0-m tall building. The bucket is initially at rest, but is traveling at 4.0 m/s when it reaches the top of the building
How much work was done by the man in lifting the bucket? A) 3.92 kJ B) 400 J C) 560 J D) 4.08 kJ E) 160 J