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प्रश्न
Why is it necessary to compare gases at S.T.P?
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उत्तर
Since the Volume of a gas changes remarkably with a change in temperature and pressure, it becomes necessary to choose standard values of temperature and pressure to which gas volume can be referred.
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संबंधित प्रश्न
Copper sulphate solution reacts with sodium hydroxide solution to form a precipitate of copper hydroxide according to the equation :
2NaOH + CuSO4 → Na2SO4 + Cu (OH)2 ↓
(i) What mass of copper hydroxide is precipitated by using 200 gm of sodium hydroxide?
[H = 1, O = 16, Na = 23, S = 32, Cu = 64]
(ii) What is the colour of the precipitate formed?
Fill in the blank
Mass of 22.4 litre of a gas at STP is __________.
What is the volume occupied by 16g of sulphur dioxide. gas at STP?
Calculate the volume of air at STP, required to convert 300 mL of sulphur dioxide to sulphur trioxide. Air contains 21% of oxygen by volume.
What volume of hydrogen sulphide at STP will burn in oxygen to yield 12.8g suIphurdioxide according to the equation?
2H2S + 3O2 → 2H2O + 2SO2
Calculate the volume of 320g of SO2 at STP .
(Atomic mass : S = 32 and O = 16)
60 cm3 of oxygen was added to 24 cm3 of carbon monoxide and mixture ignited. Calculate the volume of oxygen used up.
Hydrogen sulphide gas burns in oxygen to yield 12.8 g of sulphur dioxide gas as under:
\[\ce{2H2S + 3O2 -> 2H2O + 2SO2}\]
Calculate the volume of hydrogen sulphide at STP. Also, calculate the volume of oxygen required at STP which will complete the combustion of hydrogen sulphide determined in litres.
Water decomposes to O2 and H2 under suitable conditions as represented by the equation below:
\[\ce{2H2O -> 2H2 + O2}\]
The 2500 cm3 of H2 is subjected to `2 1/2` times increase in pressure (temp. remaining constant). What volume will H2 now occupy?
60 cm3 of oxygen was added to 24 cm3 of carbon monoxide and mixture ignited. Calculate the volume of carbon dioxide formed.
