Evaporation is a cooling process and condensation is
A) a warming process.
B) a cooling process also.
C) neither of these
Answer: A
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The hydroturbine shown accepts water at 4 MPa and exits to the atmosphere. If the flow rate is 2 m^3/s, the maximum power output is nearest:
(A) 80 MW
(B) 70 MW
(C) 60 MW
(D) 50 MW
Which of the following change when the pressure of an ideal gas is changed isothermally?
A. Mean free path B. Root-mean-square molecular speed C. Internal energy D. Most probable kinetic energy E. Average speed
Jupiter's atmosphere is a single huge storm system
Indicate whether the statement is true or false
Energy Levels: The Bohr model of the hydrogen atom predicts an ionization energy of 13.6 eV. Using this model, what would we expect for the ionization energy of the Li++ ion, which has 3 protons?
A. 122 eV B. 40.8 eV C. 54.4 eV D. 27.2 eV E. 79.6 eV