Q. Pick out the wrong unit conversion of calorific value.

View solution

Q. Increasing the temperature of an aqueous solution will cause decrease in its

View solution

Q. Assuming that CO₂ obeys perfect gas law, calculate the density of CO₂ (in kg/m³) at 263°C and 2 atm.

View solution

Q. One micron is equal to

View solution

Q. Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10⁻³ T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to - 100°C is

View solution

Q. Gases diffuse faster compared to liquids because of the reason that the liquid molecules

View solution

Q. Equal masses of CH₄ and H₂ are mixed in an empty container. The partial pressure of hydrogen in this container expressed as the fraction of total pressure is

View solution

Q. CaCO₃ contains __________ percent of Ca by weight.

View solution

Q. Solutions which distil without change in composition are called

View solution

Q. Gases having same reduced temperatures and reduced pressures

View solution

Q. Which of the following is not a unit of pressure ?

View solution

Q. The evaporation of aqueous solution of sugar causes its molarity to

View solution

Q. One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH₄ + 2O₂ → CO₂ + 2H₂O. Both the reactants and products are in gas phase. ΔH°₂₉₈ = - 730 kJ/mole of methane. Mole fraction of water vapour in the product gases is about

View solution

Q. Volume percent for gases is equal to the

View solution

Q. Compressibility factor of a real gas is the ratio of the actual volume to that predicted by ideal gas law. As the pressure of the gas approaches zero, the compressibility factor approaches

View solution

Q. Cᵨ equals Cᵥ at

View solution

Q. Pick out the wrong statement.

View solution

Q. 40 gms each of the methane and oxygen are mixed in an empty container maintained at 40°C. The fraction of the total pressure exerted by oxygen is

View solution

Q. A rigid vessel containing three moles of nitrogen gas at 30°C is heated to 250°C. Assume the average capacities of nitrogen to be Cᵨ = 29.1 J/mole.°C and, Cᵥ = 20.8 J/mole.°C. The heat required, neglecting the heat capacity of the vessel, is

View solution

Q. An oxidation process is accompanied by decrease in the

View solution