Physical Chemistry

• Wiskunde
• WO
• Studiejaar 2

A process at constant volume is called...

1. isobaric
2. isochoric
3. isothermal

An endothermic process =

a process in a system that transfers energy as heat
to the surroundings

1. true
2. false

The 1st law of thermodynamics states that
the internal energy of .... is constant.

1. open system
2. real system
3. closed system
4. isolated system

The 2nd law of thermodynamics states that,
during a spontaneous process,
the change of entropy of an isolated system...

1. remains the same
2. decreases
3. increases
4. is zero

The 3rd law of thermodynamics states that,
S is ... for all perfectly ordered crystalline materials at T = 0

1. zero
2. maximal
3. constant

During an adiabiatic process,
there is no exchange of q with the surroundings...

1. true
2. false

A (gas) -> B (gas)
<-

to produce B from A is a spontaneous reaction, when...

1. delta G>0 and K>1
2. delta G>0 and K<1
3. delta G<0 and K>1
4. delta G<0 and K<1

The activity of a solvent is considered...

1. 1
2. 0

When a disturbance happens, the system responds in a way
to minimize the effect of the disturbance,
to maintain the equilibrium.

This is called...

1. Henry's law
2. Van 't Hoff equation
3. Raoult's law
4. Chatelier principle

A buffer contains...

1. water, metal, strong acid
2. water, salt, strong acid
3. water,metal, salt
4. water, salt, weak acid