What is standard atmospheric pressure at sea level?
a. 1.0 psi (7 kPa)
b. 8.3 psi (57kPa)
c. 14.7 (101 kPa)
d. 7.5 psi (52 kPa)
Answer: c. 14.7 (101 kPa)
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Using both primary and secondary petroleum recovery techniques, what proportion of the oil in an oil field is usually pumped out?
A. 1/3 B. 1/2 C. 2/3 D. all of it
Kirchhoff's law
A) only applies to blackbodies. B) gives the wavelength of maximum energy emission. C) states that the rate of energy emission from an object is proportional to the fourth power of its temperature. D) applies to the Sun, but not the Earth. E) holds that an object that absorbs certain wavelengths well will also be a good emitter of those wavelengths.
In the section on Physical and Chemical Properties, the figure was shown. What type of change is the candle undergoing?
a) physical b) chemical
When a chlorine atom destroys an ozone molecule, that chlorine atom is taken "out of circulation" and locked in the product molecule so that it can do no more harm.
Answer the following statement true (T) or false (F)