GATE Questions

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Many toxic gases along with water vapour are emitted in vocanic eruptions. All such toxic gases include hydrochloric acid, sulfur dioxide, carbon dioxide, hydrogen sulfide and carbon monoxide. Methane is not produced in the volcanic eruptions.

The Vijaya Stambha is an imposing victory monument located within Chittor Fort in Chittorgarh, Rajasthan, India. The tower was constructed by the Mewar king, Rana Kumbha, in 1448 to commemorate his victory over the combined armies of Malwa and Gujarat led by Mahmud Khilji.

The distance around a circle is called as Circumference. And that in the case of square or rectangle it is called as Perimeter.

Majuli or Majoli is a river island in the Brahmaputra River, Assam and in 2016 it became the first island to be made a district in India.

Land is considered as an important resource because it is useful in producing many things. For example, in agriculture, land is used for cultivating the crop, in industrial use, it is used for constructing factories and to make products that we use.

We know that,

Weight W = mg. That is mass times gravitational force.

No work done as there is no external external pressure in free expansion. 

Hence, Work done in a free expansion process is Zero.