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Water boils at a lower temperature at high altitudes because

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Important Questions on States of Matter: Gases and Liquids

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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 45
In two separate bulbs containing ideal gases A and B, respectively, the density of gas A is twice that of gas B, while molecular weight of gas A is half that of gas B at the same temperature, pressure ratio PA/PB will be
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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 46
Equation of Boyle's law is
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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 47
Equal weights of methane and oxygen are mixed in an empty container at 25 ∘C . The fraction of the total pressure exerted by oxygen is:
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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 48
Helium atom is two times heavier than a hydrogen molecule. At 298 K, the average kinetic energy of a helium atom is:
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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 51
The density of a gas at 27°C and 1 atm is d. Pressure remaining constant, at which of the following temperature will its density become 0.75 d ?
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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 52
At 27°C the ratio of rms velocities of ozone to oxygen is:
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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 53
A closed vessel contains equal number of nitrogen and oxygen molecules at a pressure of p mm. If nitrogen is removed from the system, then the pressure will be
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Beta Question Bank for Engineering: Chemistry>Chapter 3 - States of Matter: Gases and Liquids>EXERCISE-1>Q 54

The rate of diffusion of methane at a given temperature is twice that of gas X. The molecular weight of X is: