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☆☆☆☆☆Cards in this guide (14)
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
Specific impulse :)
What is the value for G at 300 K if H 27 kJmol and S 0.09 kJmolK
G = 0 kJ/mol
Which design shape will generate the most thrust
A tree with branches.
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.
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
Thrust
A rocket uses an engine that creates thrust through the combustion of a liquid fuel and an oxidizer. What kind of rocket is this
Chemical rocket
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.
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