NCERT Solutions for Class 8 Science Chapter 5
Important NCERT Questions
8th Chapter 5 Coal and Petroleum
NCERT Books for Session 2022-2023
CBSE Board and State Bord
Questions No: 1
What are the advantages of using CNG and LPG as fuels?
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The advantages of using CNG and LPG as fuels are:
• They are used as non-polluting fuels to transport vehicles.
• LPG and CNG both are easy to store and transport.
• CNG is used for power generation.
• These fuels have more energy per unit volume.
• LPG can be used directly for burning in homes and factories.
• These are easily available and have affordable cost.
• LPG and CNG has virtually no ash particles left after burning.
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Here are the advantages of using CNG (Compressed Natural Gas) and LPG (Liquefied Petroleum Gas) as fuels:
Advantages of CNG:
1. Environmental Friendliness: CNG emits lower levels of CO2, CO, and particulate matter compared to conventional fuels, reducing air pollution and greenhouse gas emissions.
2. Cost-Efficiency: Generally more affordable than gasoline or diesel, offering cost savings on fuel expenses.
3. Abundant Supply: Natural gas reserves are ample, ensuring a relatively stable and consistent supply.
4. Safety Features: Being lighter than air, CNG disperses quickly if leaked, minimizing fire hazards and enhancing safety.
Advantages of LPG:
1. Clean Combustion: LPG burns more cleanly, producing fewer emissions and pollutants, contributing to improved air quality.
2. Versatility: Suitable for various applications such as heating, cooking, vehicles, and industrial purposes, providing flexibility in usage.
3. Portability and Storage: LPG can be easily transported and stored in liquid form, ensuring convenience for different applications.
4. Efficient Energy Source: LPG burns efficiently, resulting in higher thermal efficiency compared to some other conventional fuels.
Both CNG and LPG offer significant environmental benefits, cost-effectiveness, and versatility, making them increasingly popular alternatives to traditional fossil fuels across various sectors and applications.