List of top Chemistry Questions on Gas Laws asked in IPU CET

When 2.00 g of a certain volatile liquid is heated, the volume of the resulting vapour is 821 mL at a temperature of 127°C at standard pressure. The molecular mass of this substance is:

The reaction below represents the Haber process for the industrial production of ammonia, \[ N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g); \Delta H^\circ = -92 \, {kJ} \] The optimum conditions of temperature and pressure are chosen as a compromise between those that favour a high yield of ammonia and those that favour a fast rate of production. Economic considerations are also important. Which statement is correct?

Ammonia burns in air to form nitrogen dioxide and water. $4{NH}_3(g) + 7{O}_2(g) \longrightarrow 4{NO}_2(g) + 6{H}_2{O}(l) $ If 8 moles of $NH_3$ are reacted with 14 moles of $O_2$ in a rigid container with an initial pressure of 11 atm, what is the partial pressure of $NO_2$ in the container when the reaction runs to completion? (Assume constant temperature)

Which of the following statements is not correct?

100 g of O2 and 100 g of He(g) are in separate containers of equal volume. Both gases are at 100°C. Which one of the following statements is true?

Equal molar quantities of oxygen and hydrogen gas were placed in container A under high pressure. A small portion of the mixture was allowed to effuse for a very short time into the vacuum in container B. Which of the following is true concerning partial pressures of the gases at the end of the experiment?

A 13 g gaseous sample of an unknown hydrocarbon occupies a volume of 11.2 L at STP. What is the hydrocarbon?