B. It is the heat required to change a gram of substance from solid to liquid
Answer:
25 coolers are need to be produce and sell in order to minimize the cost.
Explanation:
..[1]
Differentiating the given expression with respect to dx.
Putting ,
x = 25
Taking second derivative of expression [1]
(minima)
25 coolers are need to be produce and sell in order to minimize the cost.
Answer:
H2-1
H2+-1/2
H22- zero
Explanation:
Bond order= Bonding electrons-antibonding electrons/2
In H2, there are two bonding electrons and no antibonding electrons. In H2+ there is only one bonding electron and no antibonding electron while in H22- there are two bonding and two antibonding electrons respectively.
Explanation:
Large hydrocarbon molecules can be cracked in an oil refinery through the process of cracking. Cracking of hydrocarbons involves the use of heat, pressure and catalyst to resolve heavy hydrocarbons into simpler and more useful products.
- Cracking of hydrocarbons is very essential in the oil refinery.
- Cracking helps to break giant hydrocarbon molecules into simple and more useful ones.
- Fractional distillation separates oil molecules into its different components based on their different boiling points.
- The fractions produced a times are usually long chained and are not in high demand.
- Catalytic cracking and thermal cracking helps to break the long chains of the heavy hydrocarbons fractions into simpler ones.
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