Question

Which process involves an increase in entropy of the system ?

A)any spontaneous process

B) combustion of paper

C) synthesis of cellulose

D) freezing of ice

E)formation of raindrops

2) A negative free energy change indicates that

A)the reaction is exothermic

B) energy must be added to the reaction before it can proceed

C) the reaction is at equilibrium

D) the reaction is not possible

E)the reactant is predominant at equilibrium

3) Energy is important to life forms because

A)it is required to do work

B)al life forms require a continuous supply of it

C) it is required to make specific alterations in the cell

D)both a and b

E) a,b and c

4) which of the following is defined as "heat content"

A) energy output

B)enthalpy

C) solar radiation

D) entropy

E)heat loss