Hydrocarbons containing all single bonds and a ring in their structural formulas are
a. alkenes.
b. cycloalkanes.
c. alkynes.
d. alkanes.
e. ketones.
b
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A cylindrical tank is assembled by welding steel sections in a heli-cal pattern with angle ? 5 50°. Tank diameter is 1.6 m, thickness is 20 mm, and internal pressure is 2.75 MPa. Modulus E 5 210 GPa and Poisson’s ratio ? 5 0.28. The longitudinal strain in the the wall of the tank is approximately:
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(C) 3.1 3 1024
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The specific heat Cv at constant volume of a monatomic gas at low pressure is proportional to T n where the exponent n is:
A. ?1 B. 0 C. 1 D. 1/2 E. 2