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zvonat [6]
3 years ago
6

The octane number of gasoline is a measure of octane activity. The octane activity is determined by comparing the engine perform

ance using gasoline and known mixtures of isooctane and n-heptane.
a. True
b. False
Chemistry
1 answer:
Semmy [17]3 years ago
4 0

Answer:

A. True

Explanation:

The octane number is determined by comparing the characteristics of gasoline to isooctane (2,2,4-trimethylpentane) and heptane. The correct option is option A.

Basically, the higher the octane  number, the  greater the resistance of the gasoline to knocking.

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Heat gained in a system can be calculated by multiplying the given mass to the specific heat capacity of the substance and the temperature difference. It is expressed as follows:<span>

Heat = mC(T2-T1) 

When two objects are in contact, it should be that the heat lost is equal to what is gained by the other. From this, we can calculate things. We do as follows:

<span>Heat gained = Heat lost</span>
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C(liquid water) = 4.18 J/gC
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3 0
3 years ago
Explain a mixture of molecules
skad [1K]

Answer:

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Explanation:

7 0
2 years ago
How many grams are in 2.3 moles of calcium phosphate, Ca3(PO3)2
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6 0
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Which of these is not a physical property of matter?
Zepler [3.9K]
Its D. combustibillaty

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Answer:

NO3-

Explanation:

edge2020

3 0
3 years ago
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