Stoichiometry Archives | Page 3 of 37

Which of the following gases will have the- highest kinetic energy per mole at the same pressure & temperature ?

August 30, 2021March 12, 2019 by admin

Which of the following gases will have the- highest kinetic energy per mole at the same pressure & temperature ?

A. Chlorine
B. Nitrogen
C. Ethane
D. All the gases will have the same KE

If 1 Nm3 of O2 contains ‘N’ number of molecules, then number of molecules in 2Nm3 of SO2 will be_________________?

August 30, 2021March 12, 2019 by admin

If 1 Nm3 of O2 contains ‘N’ number of molecules, then number of molecules in 2Nm3 of SO2 will be_________________?

A. N
B. N/2
C. 2N
D. 4N

The heat capacity of a substance is ____________________?

August 30, 2021March 12, 2019 by admin

The heat capacity of a substance is ____________________?

A. Greater for liquid state than for solid state
B. Lower for liquid state than for gaseous state
C. Higher for solid state than for liquid state
D. Equal for solid and liquid states below melting point

The total number of atoms in 8.5 gm of NH3 is _______________ × 1023?

August 30, 2021March 12, 2019 by admin

The total number of atoms in 8.5 gm of NH3 is _______________ × 1023?

A. 9.03
B. 3.01
C. 1.204
D. 6.02

As per Kirchhoff s equation, the heat of reaction is affected by the__________________?

August 30, 2021March 12, 2019 by admin

As per Kirchhoff s equation, the heat of reaction is affected by the__________________?

A. Pressure
B. Volume
C. Temperature
D. Molecularity

A perfectly insulated container of volume V is divided into two equal halves by a partition. One side is under vacuum, while the other side has one mole of an ideal gas (with constant heat capacity) at 298 K. If the partition is broken, the final temperature of the gas in the container___________________?

August 30, 2021March 12, 2019 by admin

A perfectly insulated container of volume V is divided into two equal halves by a partition. One side is under vacuum, while the other side has one mole of an ideal gas (with constant heat capacity) at 298 K. If the partition is broken, the final temperature of the gas in the container___________________?

A. Will be greater than 298 K
B. Will be 298 K
C. Will be less than 298 K
D. Cannot be determined

“The equilibrium value of the mole fraction of the gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid surface”. This statement pertaining to the solubility of gases in liquid is the ______________ law?

August 30, 2021March 12, 2019 by admin

“The equilibrium value of the mole fraction of the gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid surface”. This statement pertaining to the solubility of gases in liquid is the ______________ law?

A. Raoult’s
B. Henry’s
C. Amagat’s
D. None of these

______________ equation gives the effect of temperature on heat of reaction ?

August 30, 2021March 12, 2019 by admin

______________ equation gives the effect of temperature on heat of reaction ?

A. Kirchoff’s
B. Maxwell’s
C. Antoine
D. Kistyakowsky

Addition of a non-volatile solute to a pure solvent ____________________?

August 30, 2021March 12, 2019 by admin

Addition of a non-volatile solute to a pure solvent ____________________?

A. Increases its freezing point
B. Increases its boiling point
C. Decreases its freezing point
D. Both B. and C.

If the partial pressure of the solvent in the vapor phase is equal to the vapor pressure of the solvent at that temperature, then the system is said to be at its___________________?

August 30, 2021March 12, 2019 by admin

If the partial pressure of the solvent in the vapor phase is equal to the vapor pressure of the solvent at that temperature, then the system is said to be at its___________________?

A. Bubble point
B. Saturation temperature
C. Dew point
D. Both B. and C.