States of Matter
A gas in a closed container will exert much higher pressure due to gravity at the bottom than at the top.
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56 g of nitrogen and 96 g of oxygen are mixed isothermaly and at a total pressure of 10 atm. The partial pressures of oxygen and nitrogen (in atm) are respectively :
In two vessels of 1 litre each at athe same temperature 1g of H2 and 1g of CH4 are taken. For these gases:
An ideal gas is collected by downward displacement of water. Select the correct expression for Pgas according to the diagram [dHg=13.6g/cm3]:
Select the correct statement :
Calculate the number of moles of gas present in the container of volume 10 L at 300 K, if the manometer containing glycerine shows 5 m difference in level as shown diagram. (Given : dglycerin=2.72g/mL, dmercury=13.6g/mL)
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Assertion :Hot soup tastes better than the cold soup. Reason :Hot soup has high surface tension and it does not spread properly on our tongue.
A He atom at 300 K is released from the surface of the earth to travel upwards. Assuming that it undergoes no collision with other molecules, how high will it be before coming to the rest?