?Explain what happens on the molecular level when a mixture of acetylene and oxygen is ignited.
What will be an ideal response?
?If a mixture of acetylene (C2H2) and oxygen (O2) is ignited, the acetylene molecule bonds are broken, and new bonds among the hydrogen, carbon, and oxygen atoms are formed. The breaking down of acetylene molecules releases energy in the form of heat and light. The rate at which this reaction occurs results in a change in temperature. The formation of new bonds with the oxygen releases still more energy. This chemical reaction, known as combustion, is rapid oxidation.
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The major goal of the purebred producer is breed improvement.
Answer the following statement true (T) or false (F)
What register in the 8085 is always used by IN or OUT instructions to move data in or out of the microprocessor?
A) Register A B) Register B C) Register C D) the Instruction Register
An air brake equipped highway tractor features single dash air pressure gauge with two needles, one green and the other red. What does the red needle display?
A. service brake application pressure B. primary circuit pressure C. secondary circuit pressure D. hold-off pressure
A time-proportioning controller with a DC output voltage of 10 volts will produce an average voltage of 5 volts if it is switched ON for ____________________ percent of the time and OFF for ____________________ percent of the time.
Fill in the blank(s) with the appropriate word(s).