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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?
What is the volume occupied by 48g of oxygen gas at STP?
Calculate the volume of 320g of SO2 at STP .
(Atomic mass : S = 32 and O = 16)
Oxygen oxidase ethyne to carbon dioxide and water as shown by the equation :
2C2H2 + 5O2 → 4CO2 + 2H2O
What volume of ethylene gas at STP is required to produce 8.4 dm3 of carbon dioxide at STP?
The mass of 11.2 litres of a certain gas at s.t.p is 24 g. Find gram molecular mass of the gas
What volume of hydrogen and oxygen measured at S.T.P. will be required to prepare 1.8 g of water?
How much volume will be occupied by 2 g of dry oxygen at 27°C and 740 mm pressure?
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.
800 cm3 of gas is collected at 654 mm pressure. At what pressure would the volume of the gas reduce by 40% of its original volume, the temperature remaining constant?
60 cm3 of oxygen was added to 24 cm3 of carbon monoxide and mixture ignited. Calculate the volume of carbon dioxide formed.
