### Monthly Quizzes

Engineering Software is pleased to announce the introduction of free short energy conversion quizzes.

Here is a free short energy conversion quiz for the month of January -- when you are ready, take the free short energy conversion quiz for the month of January:

What is the molecular weight value for carbon?
a) The carbon molecular weight value is:  32 [kg/kmol].
b) The carbon molecular weight value is:  12 [kg/kmol].
c) The carbon molecular weight value is:  28 [kg/kmol].
d) The carbon molecular weight value is:  29 [kg/kmol].
What is the carbon higher heating value?
a) The carbon is approximately 60,000 [Btu/lbm].
b) The carbon higher heating value is approximately 14,100 [Btu/lbm].
c) The carbon higher heating value is approximately 21,000 [Btu/lbm].
d) The carbon higher heating value is approximately 4,000 [Btu/lbm].
When carbon reacts with standard air, what is the stoichiometric oxidant to fuel ratio value?
a) Carbon stoichiometric oxidant to fuel ratio value is:  10.487 [/].
b) Carbon stoichiometric oxidant to fuel ratio value is:  4.292 [/].
c) Carbon stoichiometric oxidant to fuel ratio value is:  11.444 [/].
d) Carbon stoichiometric oxidant to fuel ratio value is:  17.167 [/].
When carbon reacts with standard air, what is the combustion products flame temperature?
a) The combustion products flame temperature is:  1,972 [K].
b) The combustion products flame temperature is:  2,525 [K].
c) The combustion products flame temperature is:  2,460 [K].
d) The combustion products flame temperature is:  2,484 [K].
What is the carbon enthaply at standard reference conditions where the temperature is 298 [K] and the pressure is 1 [atm]?
a) The carbon enthalpy is:  10,000 [kJ/kg*K].
b) The carbon enthalpy is:  -10,000 [kJ/kg*K].
c) The carbon enthalpy is:  -20,000 [kJ/kg*K].
d) The carbon enthalpy is:  0 [kJ/kg*K].

Please note that early next month, February, Engineering Software will post the correct answers to the above free short energy conversion quiz questions for the month of January!

For the month of December, free short energy conversion quiz correct answers are as follows:

What is the kappa value for air?
The air kappa value is:  1.4 [/].
What is the molecular weight value for air?
The air molecular weight value is:  29 [kg/kmol].
What is the specific heat value for air in [J/kg*K]?
The air specific heat value is:  1,004 [J/kg*K].
What is the simplest form for the ideal gas state equation?
The ideal gas state equation simplest form is:  pv=RT.
What does the Carnot Cycle efficiency determine?
It determines the highest thermal efficiency for a heat engine.

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