Which of the following sequences describes how a four-stroke engine cycle powers the engine? A. Air and fuel intake, compression and ignition, combustion and expansion, exhaust B. Hydrogen and fuel intake, expansion, compression and ignition, exhaust
C. Contraction, compression and ignition, air and fuel intake, exhaust
D. Expansion, air and fuel intake, compression and ignition, extinguishment

If equal masses of the listed metals were collected , which would have a greatest volume ? a. aluminum 2.70,b.zinc7.14,c.copper 8.92,d.lead 11.34

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.

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