Which calorific value has highest value?

hydrogen
Calorific value is nothing but the energy contained in a fuel or food, determined by measuring the heat produced by the complete combustion of a specified quantity of it. This is now usually expressed in joules per kilogram. Hence, hydrogen has the highest calorific value.

Why does ethanol produce more energy than methanol?

In this experiment I will investigate to see which alcohol releases the most energy during combustion; Methanol, Ethanol, Propanol, Butanol or Pentanol. This is because when a bond is broken energy is released. This means that the alcohols with longer chains and therefore more bonds will release more energy.

How can we increase calorific value?

To provide less expensive and non-polluting coals of which calorific values are increased by improving composition of coals having high moisture content and low fire power, such as peat and lignite, to thereby increase combustion calorie.

What does high calorific value mean?

Calorific value is the amount of heat energy present in food or fuel and which is determined by the complete combustion of specified quantity at constant pressure and in normal conditions. If the heat contained in the water vapour could be recovered then it has high calorific value.

Which of the following has highest calorific value Mcq?

From the above explanation we can say that LPG has the highest calorific value. So, the correct answer is option “C”. Note: The combustion of a fuel product generates water vapor.

Which among the three alcohols is the best fuel?

The first four alcohols, (in order of carbon content) methanol, ethanol, propanol, and butanol, are of greatest interest for fuel use as their chemical properties make them useful in internal combustion engines.

Which of the fuel does have highest specific energy?

diesel
Which of the fuel does have highest specific energy? Explanation: Specific energy is the amount of energy liberated after combustion, as among these diesel liberated the highest amount of energy which is 48 MJ/kg.

Which has more energy ethanol or methanol?

On the other hand, ethanol is less chemically toxic than methanol, and it carries more energy per gallon. Ethanol contains about 75 percent of the energy of gasoline per gallon, compared to 67 percent for methanol. Methanol is more corrosive than ethanol. …

Why is ethanol better than methanol?

Methanol has only half the energy content per gallon of gasoline. Ethanol is two-thirds the intensity of gasoline. However, a fuel cell powered vehicle is at least twice the efficiency of an internal combustion engine, so the tank storage problem would be solved with a direct methanol fuel cell.

What increases calorific value of fuel?

2.1. The calorific value of LFG can be defined as the amount of heat produced on combusting a unit volume of gas and can be expressed in kcal/m3, kJ/m3, or BTU/ft3. Calorific value depends directly on the methane content of LFG, i.e., the higher the methane content, the greater the calorific value.