Gases Set 3 - ilmijazeera

Results

#1. If absolute temperature of a gas is doubled and the pressure is reduced to one half the volume of gas will

remain unchanged

increases four times

reduce to

be double

#2. How should the conditions be changed to prevent the volume of a given mass of gas from expanding when its mass is increased

temperature is lowered and pressure is increased

temperature is increased and the pressure is lowered

temperature and pressure both are lowered

temperature and pressure both are increased

#3. The molar volume of CO2 is maximum at

STP

127 oC and 1 atm

0 oC and 2 atm

273 oC and 2 atm

#4. Gases deviate from ideal behaviour at high pressure. Which of the following is correct for non–ideality?

At high pressure, the gas molecules move in one direction only

At high pressure, the collisions between, the gas molecules are increased manifold

At high pressure, the volume of gas becomes insignificant

AT high pressure, the intermolecular attractions, become significant

#5. The deviation of a gas from ideal behaviour is maximum at,

– 10 oC and 5.0 atm

– 10 oC and 2.0 atm

100 oC and 2.0 atm

0 oC and 2.0 atm

#6. At high temperature isotherm moves away from both the axis because of increase in,

pressure

volume

no. of moles

all above

#7. Values of Charle’s law constant K depends upon.

mass of gas

pressure gas

no. of moles of gas

all above

#8. Equal volumes of H2 and He are inserted in the same vessel. The pressure exerted by H2 and He are in the ratio:

1:1

2:1

1:2

all above

#9. Which of the following have same no. of molecules at STP

1000 cm3 of N2H4 and O2

200 cm3 of CO2 and N2O

50 cm3 each of CO and N2

all above

#10. If absolute temperature is doubled and the pressure is increased 4 times. The volume is

half

double

four times

remains the changed

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Results

#1. If absolute temperature of a gas is doubled and the pressure is reduced to one half the volume of gas will

#2. How should the conditions be changed to prevent the volume of a given mass of gas from expanding when its mass is increased

#3. The molar volume of CO2 is maximum at

#4. Gases deviate from ideal behaviour at high pressure. Which of the following is correct for non–ideality?

#5. The deviation of a gas from ideal behaviour is maximum at,

#6. At high temperature isotherm moves away from both the axis because of increase in,

#7. Values of Charle’s law constant K depends upon.

#8. Equal volumes of H2 and He are inserted in the same vessel. The pressure exerted by H2 and He are in the ratio:

#9. Which of the following have same no. of molecules at STP

#10. If absolute temperature is doubled and the pressure is increased 4 times. The volume is