XiMDCAT XI Complete Chemistry Grand Test#Gases#Kinetic Molecular Theory26Choose the best answerIn classical kinetic molecular theory, what is assumed about molecular translational motion at absolute zero?AWater freezesBLiquid helium freezesCMolecular translational motion is considered zeroDLiquid hydrogen freezes Like 1 Discuss 0Share
XiMDCAT XI Complete Chemistry Grand Test#Cell Potential#Electrochemistry27Choose the best answerFor E°(Fe²⁺/Fe) = −0.44 V and E°(Sn²⁺/Sn) = −0.14 V, calculate E°cell for Fe²⁺ + Sn → Fe + Sn²⁺.A+0.30 VB0.58 VC−0.30 VD–0.58 V Like 0 Discuss 0Share
XiMDCAT XI Complete Chemistry Grand Test#Chemical Equilibrium#Le Chatelier's Principle28Choose the best answerFor H₂S ⇌ H⁺ + HS⁻, what change occurs when dilute HCl is added at constant temperature?AThe equilibrium constant changesB[HS⁻] increasesCUndissociated H₂S decreasesD[HS⁻] decreases Like 0 Discuss 0Share
XiMDCAT XI Complete Chemistry Grand Test#Boiling Point#Liquids29Choose the best answerChoose the correct order of boiling points.AWater > Acetic acid > Ethanol > Acetone > CS₂BAcetic acid > Water > Acetone > Ethanol > CS₂CAcetic acid > Ethanol > Water > Acetone > CS₂DAcetic acid > Water > Ethanol > Acetone > CS₂ Like 0 Discuss 0Share
XiMDCAT XI Complete Chemistry Grand Test#Gases#Ideal Gas Equation30Choose the best answerAn ideal gas has volume V and pressure P at 27°C. What temperature is required to keep volume V when the pressure becomes 2P?A54°CB54 KC600°CD600 K Like 0 Discuss 0Share