Gaseous Laws and Ideal Gas Equation

IMPORTANT

Gaseous Laws and Ideal Gas Equation: Overview

This topic covers concepts such as Gas Laws, Boyle's Law, Graphs Based on Boyle's Law, Isotherm in Graph, Charles' Law, Graphs Based on Charles' Law, Isobar in Graph, Absolute Zero Temperature, Gay-Lussac's Law, Graphs Based on Gay-Lussac's Law, etc.

Important Questions on Gaseous Laws and Ideal Gas Equation

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What volume of oxygen gas (O2) measured at  0°C and 1 atm, is needed to burn completely 1L of propane gas  (C3H8) measured under the same conditions?

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In a closed flask of 5 litres, 1.0 g of  H2 is heated from 300 K to 600 K. Which statement is not correct?

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A bubble of air is underwater at temperature   15 ο C and the pressure 1.5 bar. If the bubble rises to the surface where the temperature is   25°C and the pressure is 1.0 bar, what will happen to the volume of the bubble?

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Cyclopropane and oxygen at partial pressures 170 torr and 570 torr respectively are mixed in a gas cylinder. What is the ratio of the number of moles of cyclopropane to the number of moles of oxygen  (nC3H6nO2) (Assume no reaction).

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The correct value of the gas constant is close to:

EASY
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If P, V, M, T and R are pressure, volume, molar mass, temperature and gas constant respectively, then for an ideal gas, the density is given by

EASY
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If P,V,M, T and R are pressure, volume, molar mass, temperature and gas constant respectively, then for an ideal gas, the density is given by

HARD
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The density of the gaseous mixture in a vessel (N2 and He) at 2.1 atmosphere and 310 K is 1.35 g/litre. If a small pin-hole is made on the wall of the vessel, through which gases effuse, then which of the following is the correct composition of the gases He and N2   effusing out initially?

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Internal energy of n1 mol of hydrogen of temperature T is equal to the internal energy of n2 mol of helium at temperature 2T. The value of 10n1n2 is

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At STP, 5.6 litre of a gas weighs 60 g. The vapour density of gas is -

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Consider one mole of a gas in a closed vessel fitted with a movable piston. At constant temperature T, the pressure of the gas P is increased gradually and the volume V is noted. The resulting P-V isotherm (not drawn to scale) is given below.

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The correct plot (not drawn to scale) of the number of moles of the substance in gas phase $\left(n_{\mathrm{G}}\right)$ against $V$ or $P$ is:

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Consider the chemical equilibrium A(s)B(s)+C(g)inside a vessel fitted with a movable piston at temperature T. The correct plot corresponding to volume change (assuming ideal gas behavior) is

EASY
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A thermally insulated vessel is partitioned into two compartments by a fixed diathermal (heat conducting) wall and each compartment contains certain amount of ideal gas. The temperature, pressure, volume, number of moles, entropy of the gases in the first and second compartments are denoted by T1,P1,V1,n1,S1 and T2,P2,V2, n2,S2, respectively. Initially, T1=400 K and T2=200 K,n1=n2,V2=V1 and the system evolves in time till thermal equilibrium is reached. The correct figure(s) depicting this spontaneous process, can be described as

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A certain gaseous reaction, carried out in an insulated sealed container results in an increase in temperature from 200 K to 400 K, with the pressure remaining constant. The correct equation that describes the reaction is:

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The temperature of a given mass of a gas is increased from 19°C to 21°C at constant pressure. The volume V of the gas is increased

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A balloon filled with an air sample occupies 3 L volume at 35°C. On lowering the temperature to T, the volume decreases to 2.5 L. The temperature T is? [Assume P constant]

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When a perfect gas at 27°C is heated, at a constant pressure, to a final temperature of 327°C. then the volume of the gas increases to_________ times the original.

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Pressure of 1 g ideal gas X at 300 K is 2 atm. When 2g of another gas Y is introduced in the same vessel at same temperature, the pressure become 1 atm. The correct relationship between molar mass of X and Y is ___

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For formation of 3.40 g of ammonia gas, what volumes of hydrogen gas and nitrogen gas, respectively, are required at NTP conditions?

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The graph between P and T according to Gay lussac's law is a