The pressure of 1 gm of an ideal gas A at 27 °C is found to be 2 bar. When 2 g of another ideal gas B is introduced in the same flask at the same temperature, the pressure becomes 3 bar.
The correct relationship between their molecular masses is -
1. MA=MB
2. 4MA=MB
3. MA= 2MB
4. 2MA=MB
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe pressure exerted by a mixture of 3.2 g of methane and 4.4 g of carbon dioxide contained in a 9 dm3 flask at 27 °C would be -
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe total pressure of a mixture that contains 8 g of O2 and 4 g of H2 confined in a vessel of 1 dm3 at 27°C would be -
(R = 0.083 bar dm3 K-1mol-1)
1. 45.67 bar
2. 56.02 bar
3. 34.67 bar
4. 67.13 bar
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFind the mass of payload of a balloon of radius 10 m, if a mass of 100 kg is filled with helium at 1.66 bar and 27°C temperature.
(Density of air = 1.2 kg m–3 and R = 0.083 bar dm3 K–1 mol–1).
1. 2905 Kg
2. 3811 Kg
3. 2721 Kg
4. 4201 Kg
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology2.9 g of a gas at 95°C occupies the same volume as 0.184 g of dihydrogen at 17°C, at the same pressure. The molar mass of the gas is -
1. 20 g mol-1
2. 40 g mol-1
3. 34 g mol-1
4. 14 g mol-1
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA mixture of dihydrogen and dioxygen at one bar pressure contains 20% by weight of dihydrogen. The partial pressure of dihydrogen is -
1. 0.2 bar
2. 0.7 bar
3. 0.8 bar
4. 0.6 bar
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology34.05 mL of phosphorus vapour weighs 0.0625 g at 546 °C and 0.1 bar pressure. The molar mass of phosphorus would be -
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe temperature of 4.0 mole of a gas occupying 5 dm3 at 3.32 bar is -
(R = 0.083 bar dm3 K–1 mol–1).
1. 40 K
2. 30 K
3. 20 K
4. 50 K
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe volume occupied by 8.8 g of CO2 at 31.1°C and 1 bar pressure is:
(R = 0.083 bar L K–1 mol–1)
1. 4.05 L
2. 3.05 L
3. 6.05 L
4. 5.05 L
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct relation between density () and pressure of gas (P) is-
1.
2.
3.
4. None of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology