Advertisements
Advertisements
प्रश्न
Which will have greater volume when the following gases are compared at STP:
- 1.2/N2 at 25°C and 748 mmHg
- 1.25/O2 at STP
Advertisements
उत्तर
V = 1.2 litres
P = 748 mmHg
T = 298 K
P1 = 760 mmHg
T1 = 273 K
V1= ?
`("P" "V")/"T" = ("P"_1 "V"_1)/"T"_1`
`(748xx1.2)/298 = (760xx"V"_1)/273`
V1 = 1.081 litres
V = 1.25 litres
P = 760 mmHg
T = 273 K
P1 = 760 mmHg
T1 = 273 K
V1= ?
`("P" "V")/"T" = ("P"_1 "V"_1)/"T"_1`
`(760xx1.25)/273 = (760xx"V"_1)/273`
V1 = 1.25 litres
1.25 litres O2 will have a greater volume than 1.2 litres N2.
APPEARS IN
संबंधित प्रश्न
What volume of hydrogen sulphide at STP will burn in oxygen to yield 12.8g what volume of oxygen would be required for complete combustion?
If 112 cm3 of hydrogen sulphide is mixed with 120 cm3 of chlorine at STP, what is the mass of sulphur formed?
H2S + Cl2 → 2HCI + S
Solve the following:
The vapour density of a gas is 8. What would be the volume occupied by 24.0 of the gas at STP?
A cylinder contains 68g of ammonia gas at STP
- What is the volume occupied by this gas?
- How many moles of ammonia are present in the cylinder?
- How many molecules of ammonia are present in the cylinder? [N - 14, H - 1]
A gas of 32 g mass has a volume of 20 litres at STP. Calculate the gram molecular weight of the gas.
What do you mean by stoichiometry?
What volume of oxygen at STP is required to affect the combustion of 11 litres of ethylene [C2H4] at 273°C and 380 mm of Hg pressure?
\[\ce{C2H4 + 3O2 → 2CO2 + 2H2O}\]
Calculate the mass and volume of oxygen at S.T.P., which will be evolved on electrolysis of 1 mole (18 g) of water.
What volume of hydrogen and oxygen measured at S.T.P. will be required to prepare 1.8 g of water?
The equation given below relates the manufacture of sodium carbonate (molecular weight of Na2CO3 = 106).
- NaCl+NH3+ CO2+ H2O→ NaHCO3+NH4Cl
- 2NaHCO3→ Na2CO3+H2O + CO2
Equations (1) and (2) are based on the production of 21.2 g of sodium carbonate.
(a) What mass of sodium hydrogen carbonate must be heated to give 21.2 g of sodium carbonate?
(b) To produce the mass of sodium hydrogen carbonate calculate in (a), what volume of carbon dioxide, measured at S.T.P. would be required?
