What is the activation energy of a chemical reaction if the reaction rate triples when the temperature goes from 10
to 30
?
a. 
b. 
c. 
d. 
e. 
c.
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Impedance: Which one of the following capacitances in series with a 100-? resistor and 15-mH coil will give a total impedance of 110 ? at 2.0 kHz?
A. 0.14 mF B. 46 ?F C. 10 ?F D. 0.56 ?F
Some antiparticles are identical to the particles they correspond to
a. True b. False Indicate whether the statement is true or false
What types of stars end their lives with supernovae?
A) all stars that are yellow in color B) stars that are at least several times the mass of the Sun C) all stars that are red in color D) stars that are similar in mass to the Sun E) stars that have reached an age of 10 billion years
(a) Internal human body temperature is often stated to be normal at 98.6°F. What is this temperature on the Celsius and Kelvin scales?
(b) Gallium boils at 2205°C. What is the corresponding temperature in the Fahrenheit and Kelvin scales? (c) The boiling point of liquid nitrogen is 77.0 K. What is the corresponding temperature in the Fahrenheit and Celsius scales?