Revision Chemistry

Noble gas (Group 18) members in Periodic Table

• Helium

• Nitrogen

• Neon

• Oxygen

Ideal Gas Law statement state that _______________

• Collisions between gas particles are elastic.

• Intermolecular forces between particles are negligible.

• Gas can be expended in a definite container and pressure.

• The collisions between gas particles and container walls are perfectly elastic.

____________ energy refers to heat released when one mole of an ionic solid is formed from its gaseous ions under standard conditions.

Which of the following is the correct statement for a chemical reaction at equilibrium?

• At equilibrium, the rate of the forward reaction is the same as the rate of reverse reaction.

• At equilibrium, the total concentration of products equals the total concentration of the reactants.

• The rate constant of forward reaction is equal to the rate constant for the reverse reaction.

• There is a set of equilibrium concentration that equals the K_c value.

Attractions between gas molecules in an enclosed vessel is an important aspect of _____________________.

• Boyle’s Law

• Kinetic Molecular Theory

• Ideal Gas Law

• Dalton’s Law

Factors that change the system equilibrium based on Le Chatelier Principle.

• Time

• Temperature

• Concentration

• Pressure

In the catalyst reaction, the enzyme and substrate complex must be ___________ to each other.

• complement

• similar

The combination of water and Methyl isocyanide (MIC) in the Bhopal tragedy produce an _________________ reaction

• endothermic

• exothermic

Collision theory states that molecules______________.

• need to collide to permit reaction

• consist a minimum energy to start reaction (activation energy)

• must collide in correct orientation

• need to collide in an enclosed system

Characteristic for endothermic reaction.

• Heat is absorbed from the surrounding.

• The container vessel cool.

• Increase in surrounding temperature

• Value of enthalpy is negative