1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sidana [21]
3 years ago
14

what ere the different types of petrol used in petrol pumps?what is the composition of each and what type of vehicle is each sui

table for?is there a difference in the price?
Chemistry
1 answer:
Artist 52 [7]3 years ago
6 0
Petrol is primarily characterised by its octane number which defines its ability to burn efficiently and produce more energy per unit. A low octane petrol particle blast inside the engine instead of burning from spark this is called knocking as it produces knocking sound in the engine, to counter this an anti-knocking agent is added to petrol. Earlier Lead was used as an anti-knocking agent but it is highly toxic ,also the researchers who experimented lead with petrol died unnatural death. In later stages when effects of lead toxicity started showing up lead was replaced by benzene compounds as anti-knocking agents this is know as Unleaded petrol. Benzene is carcinogenic and started showing its ill effects after few years especially in densely populated cities. Govts have reduced the concentration of benzene in petrol thereafter and emphasised on implementation of Euro iv standards.
You might be interested in
why a gas, at constant pressure, increases greatly in volume when it is gently heated but a solid does not
11Alexandr11 [23.1K]

Explanation:

This is because gas particles are free to move as they are not held in place by strong molecular forces while particles in a solid are

8 0
3 years ago
Two jars are placed inside an insulated box. One jar contains ice water and the other contains hot soup. What will happen to the
pickupchik [31]
Answer is: t<span>he hot soup will lose heat and the ice water will gain heat.
</span><span>Heat spontaneously flows from a hotter to a colder body.
</span>The thermal radiation<span> is </span>electromagnetic radiation<span> generated by the </span>thermal motion<span> of </span>charged particles<span> in </span>matter (in this case from the hot soup to the cold water). 
3 0
3 years ago
A certain compound contains 4.0 g of calcium and 7.1 g of chlorine. Its relative molecular mass is 111. Find its empirical and m
Phantasy [73]

Given :

A certain compound contains 4.0 g of calcium and 7.1 g of chlorine.

Its relative molecular mass is 111.

To Find :

Its empirical and molecular formulas.

Solution :

Moles of calcium , n_1=\dfrac{4}{40}=0.1\ moles.

Moles of chlorine , n_2=\dfrac{7.1}{35.45}=0.2\ moles .

The ratio calcium and chlorine is 1 : 2 .

So , the empirical formula is CaCl_2 .

Now , molecular mass of CaCl_2 is :

M=40+(2\times 35.45)\\\\M=110.9\ g

So , n=\dfrac{111}{110.9} \approx1

Therefore , the molecular formula is also CaCl_2 .

Hence , this is the required solution .

7 0
2 years ago
✞Why is propane stored in household tanks but natural gas is not?♡♡♡​
Klio2033 [76]

Answer:

In order to keep propane a liquid at room temperature (70° F or 21° C), it has to be held in a tank at a pressure of about 850 kPa. ... Household metal tanks cannot withstand this pressure. In short, natural gas is not stored in household tanks because the symmetry of its molecule makes it hard to liquify.

4 0
2 years ago
ANSWER ASAP!!!! PLS HELP
tamaranim1 [39]

Answer: increase

Explanation: as pressure is increased, equlilibrium shifts towards the side with less moles of gas.  

6 0
1 year ago
Other questions:
  • Use your understanding of the ideal gas law to
    10·1 answer
  • Assuming NORMAL conditions, select all of the following that would be found in lesser concentrations in the urine than in the gl
    12·1 answer
  • What is the hydridization of TeBr4
    10·1 answer
  • A gas occupies 11.2 liters at 0.860 atm. What is the pressure if the volume becomes 15.0 L? (Boyle)
    6·2 answers
  • Which of the following is an example of chemical weathering?
    13·1 answer
  • Which of the following best describes topsoil?
    14·1 answer
  • Is salt water considered a mixture or a solution?
    5·2 answers
  • Which ion dissociates in Acids?<br><br> A- ООН-<br> B- ОН+<br> C- ОН+<br> D- COOH
    11·1 answer
  • What is energy, what is power, and how are they related?
    5·2 answers
  • What coefficient is needed to balance the reaction
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!