Question

1. State any three reasons to justify that LPG is considered an ideal fuel.
2. What is Double Circulation in Humans? Explain with diagram.​

Answer 1

Answer:

, it does not cause any pollution. Therefore, LPG is a clean fuel. (ii) LPG has a high calorific value as compared to other common fuels. The calorific value of LPG is 50kj g-1, i.e., when 1 g of LPG is burnt, heat equivalent to 50kj energy is obtained.

Explanation:

The majority of mammals (including humans) utilize a double circulatory system. This means we have two loops in our body in which blood circulates. One is oxygenated, meaning oxygen rich, and the other is deoxygenated, which means it has little to no oxygen, but a lot of carbon dioxide

Answer 2

Answer:

1)

• Its high calorific value
• it is easily available
• release high amount of heat per unit mass