Answer to Question #60112 in Physical Chemistry for joseph orobiyi

Question

5 The heat of combustion for 1 mole of carbon to carbon dioxide is -410
kJ. How many kJ of heat would be liberated from the complete combustion
of 60.0 g of carbon?
-82 kJ
-2050 kJ
-24,600 kJ
650.2 kJ



6 If the reaction $A + B \rightarrow C$ has an equilibrium constant
greater than one, which of the following statements is correct?
The reaction is product favoured.
The reaction is not spontaneous.
The forward rate of reaction is fast.
The backward rate of reaction is slow.



7 If a chemical reaction has a positive change in entropy, $\DeltaS$, then
the reaction is exothermic.
heat goes from the system into the surroundings.
the disorder of the system increases.
the Gibbs free energy is negative.



8 Thermodynamics can be used to determine all of the following EXCEPT
the direction in which a reaction is spontaneous.
the extent to which a reaction occurs.
the rate of reaction.
the temperature at which a reaction is spontaneous.

Answer 1

5, -2050 kJ
6, The reaction is product favoured.
7, the disorder of the system increases.
8, the rate of reaction.