Cards in this guide (16)
What is thermal energy
The total kinetic energy of the particles in a system
What is Gibbs Free energy
The usable energy released or absorbed by a reaction.
How is an endothermic reaction identified
It requires heat as a reactant.
What defines an exothermic reaction
A reaction that produces heat
Which of the following describes the entropy change of a gas reaction
If there is an increase in the number of gas molecules, then S > 0.
Which term describes the amount of thrust created per unit of mass of an engine and fuel
What is the value for G at 300 K if H 27 kJmol and S 0.09 kJmolK
Which of these actions increases enthalpy in the air molecules of the Earth's atmosphere
The air being heated by the sun.
Which design shape will generate the most thrust
What statements about airplane and rocket flight is true
Only one requires air molecules to generate lift.
A solid fuel designed for a rocket has air pocket inside what is the danger of this
The rocket might explode from the added pressure when the combustion reaction hits the air.
The size of a rocket's cargo determines the amount of thrust the engine must create to carry the rocket into outer space. What is another term for this cargo
A rocket is designed to drop its first stage mid-flight. Due to a malfunction this does not occur. What is a possible result of this malfunction
The rocket is now too heavy to reach its destination
The combustion reactions that occur in the engines of a rocket lead to pressure gradients that cause the gaseous products to rush out of the rocket into the atmosphere. What is created by this process
A rocket uses an engine that creates thrust through the combustion of a liquid fuel and an oxidizer. What kind of rocket is this
An aerospace engineer is designing a rocket to have three stages. Which is not a reasonable explanation for this decision
to simplify the design of the rocket.