Numerical Problem
admin One mole of an ideal gas is heated at constant pressure from 0oC to 200oC. (a) Calculate work done. (b) If the gas were expanded isothermally & reversibly at 0°C…
Give the comparison of work of expansion of an ideal Gas and a van der Waals Gas.
We know that for an ideal gas, work done w is given as: Wideal = -nRT ln (V2/ V1) And for a a van der Waals Gas, work done is…
What are Water Problems?
The cutting of trees in the hilly areas has lead to decrease in the absorption of water. The increase in soil erosions and the aggregation of water during rainy seasons…
What are ocean water resources?
These are also known as the marine resources. The oceans cover around 70 percent of the earth surface. The oceans are still unexplored and they have large resources. The land…
What Are Land Resources?
They occupy nearly 20 percent of the earth surface. It covers around 13000 million hectares of the area. The houses, roads and factories occupy nearly one third of the land.…
How was Soil Formed?
The formation of soil occurs by the process of weathering and soil development. The weathering is further divided into the physical and chemical types. It is basically a destructive process…
What is the conservation of soil?
There are many factors which play a role in the conversation of soil. In order to conserve the soil the top most layers must be preserved. It is the ideal…
What are Mineral Resources?
These are the natural resources which cannot be renewed. They are present in the organisms as an organic and inorganic molecule and ions. The calcium, phosphorous, sodium, chlorine and sulphur…
What is the use of minerals?
The uranium is a metallic mineral. It is used in the nuclear bombs, electricity and in tinting glass. The thorium is also a metallic mineral. It is used in the…
What are Biotic Resources?
These are also known as the living resources. These are the renewable resources and include the plants and animals. The foods, sugars, tea, coffee, medicines are obtained from the plants.…