Advertisements
Advertisements
प्रश्न
A sample of carbon dioxide occupies 30 cm3 at 15°C and 740 mm pressure. Find its volume at STP.
Advertisements
उत्तर
V = 30 cm3
P = 740 mm
T = 288 K
P1 = 760 mm
V1= ?
T1 = 273 K
Using gas equation,
`"PV"/"T" = ("P"_1 "V"_1)/"T"_1`
`(740xx30)/288 = (760xx"V"_1)/273`
`"V"_1 = 27.7 "cm"^3`
APPEARS IN
संबंधित प्रश्न
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?
Give a chemical test to distinguish between the following pair of compounds:
Calcium nitrate gas and sulphur diaoxide gas
What is the mass of 56 cm3 of carbon monoxide at S.T.P?
When carbon dioxide is passed over red hot carbon, carbon monoxide is produced according to the equation :
\[\ce{CO2 + C -> 2CO}\]
What volume of carbon monoxide at S.T.P. can be obtained from 3 g of carbon?
How much calcium oxide is obtained by heating 82 g of calcium nitrate? Also, find the volume of NO2 evolved:
\[\ce{2Ca(NO3)2 ->2CaO + 4NO2 + O2}\]
Water decomposes to O2 and H2 under suitable conditions as represented by the equation below:
\[\ce{2H2O -> 2H2 + O2}\]
If 2500 cm3 of H2 is produced, what volume of O2 is liberated at the same time and under the same conditions of temperature and pressure?
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?
A given amount of gas A is confined in a chamber of constant volume. When the chamber is immersed in a bath of melting ice, the pressure of the gas is 100 cmHg.
- What is the temperature when the pressure is 10cmHg?
- What will be the pressure when the chamber is brought to 100°C
Why is it necessary to compare gases at S.T.P?
What temperature would be necessary to double the volume of a gas initially at s.t.p. if the pressure is decreased by 50%?
