Chemistry

If the ratio of the rates of diffusion of two gases A and B is 4 : 1. Then the ratio

If the ratio of the rates of diffusion of two gases A and B is 4 : 1. Then the…

Which of the following statement is not correct

Which of the following statement is not correct Options (a) The units of surface tension are dynes cm⁻¹ (b) The…

The boiling point of water decreases at higher altitudes because

The boiling point of water decreases at higher altitudes because Options (a) the atmospheric pressure is low (b) the temperature…

Measurement of the dry gas from the volume of moist gas is based on

Measurement of the dry gas from the volume of moist gas is based on Options (a) Boyle's law (b) Avogadro's…

A real gas most closely approaches the behaviour of an ideal gas at

A real gas most closely approaches the behaviour of an ideal gas at Options (a) 15 atm and 200 K…

To which of the followings the Dalton’s law of partial pressure is not applicable

To which of the followings the Dalton's law of partial pressure is not applicable Options (a) H₂ and He (b)…

What is the pressure of 64g O₂ enclosed in a cylinder of 20 litres at 27⁰C

What is the pressure of 64g O₂ enclosed in a cylinder of 20 litres at 27⁰C Options (a) 2.5 atm…

The density of methane (CH₄) at 2.0 atmospheric pressure and 27⁰C is

The density of methane (CH₄) at 2.0 atmospheric pressure and 27⁰C is Options (a) 1.30 gL⁻¹ (b) 0.13 gL⁻¹ (c)…

If the gas at constant temperature and pressure expands, then its

If the gas at constant temperature and pressure expands, then its Options (a) internal energy increases (b) internal energy remains…

A certain mass of gas occupies a volume of 300 c.c. at 27⁰C and 620 mm pressure

A certain mass of gas occupies a volume of 300 c.c. at 27⁰C and 620 mm pressure.The volume of this…