What is kinetic energy of 1 g of O₂ at 47⁰C
What is kinetic energy of 1 g of O₂ at 47⁰C
Options
(a) 1.24 ˣ 10² J (b) 2.24 ˣ 10² J (c) 1.24 ˣ 10³ J (d) 3.24 ˣ 10² J
Correct […]
States of Matter Gases and Liquids
The kinetic energy of a gas molecule is … temperature
The kinetic energy of a gas molecule is … temperature
Options
(a) independent of (b) directly proportional to (c) inversely proportional to (d) directly proportional to square root of
Correct Answer:
directly proportional […]
Which among the following gas will greatly deviate from Henry’s law in water
Which among the following gas will greatly deviate from Henry’s law in water
Options
(a) H₂ (b) N₂ (c) CH₄ (d) CO₂
Correct Answer:
CO₂
Explanation:
Gases obey Henry’s law provided (i) the […]
Use of hot air balloons in sports and for meteorological observations is an application
Use of hot air balloons in sports and for meteorological observations is an application of
Options
(a) Boyle’s law (b) Newton’s law (c) Kelvin’s law (d) Charle’s law
Correct Answer:
Charle’s law
Explanation: […]
The atmospheric pressure is sum of the
The atmospheric pressure is sum of the
Options
(a) pressure of the biomolecules (b) vapour pressure of atmospheric constituents (c) vapour pressure of chemicals and vapour pressure of volatiles (d) pressure created on […]
Helium is used in balloons in place of hydrogen because it is
Helium is used in balloons in place of hydrogen because it is
Options
(a) radioactive (b) more abundant than hydrogen (c) incombustible (d) lighter than hydrogen
Correct Answer:
incombustible
Explanation:
Helium is used […]
A gas deviates from ideal behaviour at a high pressure because its molecules
A gas deviates from ideal behaviour at a high pressure because its molecules
Options
(a) have kinetic energy (b) are bound by covalent bonds (c) attract one another (d) show the Tyndall effect
In the equation of state of an ideal gas PV = nRT, the value of the universal gas
In the equation of state of an ideal gas PV = nRT, the value of the universal gas constant would depend only on
Options
(a) the nature of the gas (b) the pressure […]
The pressure and temperature of 4 dm³ of carbon dioxide gas are doubled
The pressure and temperature of 4 dm³ of carbon dioxide gas are doubled. Then the volume of carbon dioxide gas would be
Options
(a) 2 dm³ (b) 3 dm³ (c) 4 dm³ (d) […]
Kinetic theory of gases presumes that collision between the molecules to be perfectly
Kinetic theory of gases presumes that collision between the molecules to be perfectly elastic because
Options
(a) collisions will not split the molecule (b) the molecules are tiny (c) the molecules are rigid […]