Define Latent heat of vaporisation?
Latent heat of vaporisation is the heat energy required to change 1 kg of a liquid to gas at atmospheric pressure at its boiling point.
What is Latent heat of fusion ?
Latent heat of fusion is the amount of heat energy required to change 1 kg of solid into liquid at its melting point.
What are the major green house gases ?
Carbon dioxide (CO2) is the primary greenhouse gas
What are the major pollutants of air ?
Carbon monoxide, nitrogen oxides, carbon dioxide, methane and sulphur dioxide are the major pollutants of air.
How water can be made safe for drinking ?
How water can be made safe for drinking:a) You have already seen how water is filtered. This is a physical method of removing impurities. A popular household filter is a candle type filter.b) Many households use boiling as a method for obtaining safe drinking water. Boiling kills the germs present in the water.c ) Chlorination …
What is potable water?
Water which is suitable for drinking is called potable water. You have seen how various physical and chemical processes in the sewage treatmentplants help to clean water before discharging it into water bodies.
What is water pollutants?
Whenever harmful substances such as sewage, toxic chemicals, silt, etc., get mixed with water, the water becomes polluted. The substances that pollute water are called water pollutants.
what is greenhouse effect?
. The trapping of radiations by the earth’s atmosphere is similar. That is why it is called the greenhouse effect
What is a full form of LPG ?
LPG (Liquefied Petroleum Gas)
What is full form of CNG ?
CNG (Compressed Natural Gas)