The rings of Neptune contain lots of dust as indicated by forward-scattering light
a. True
b. False
Indicate whether the statement is true or false
True
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An ideal gas is allowed to expand adiabatically. Assume the process is reversible. The change in entropy is
a. 0 b. nR ln (V2/V1) c. nR ln (T2/T1) d. kn ln (V2/V1) e. kn ln (T2/T1)
An ideal gas is in contact with a heat reservoir to that it remains at a constant temperature of 300.0 K. The gas is compressed from 24.0 L to 14.0 L. The mechanical device that operating the piston to compress the gas expends 5.00 kJ of energy. How much heat flows between the gas and the heat reservoir?
A. -3.0 kJ B. -5.1 kJ C. -2.0 kJ D. -5.0 kJ
Measurements of carbon dioxide concentrations in our atmosphere over the past 800,000 years show
A) an indirect correlation with global surface temperatures B) a direct correlation with global surface temperatures, only over the past century C) no correlation with global surface temperatures D) a direct correlation with global surface temperatures
The Andes were formed by
A) two pieces of continental crust separating B) two pieces of continental crust colliding C) two pieces of oceanic crust colliding D) pieces of oceanic and continental crust colliding