Cards in this guide (15)
What is thermal energy
The total kinetic energy of the particles in a system
12 l of ammonia were produced by the haber process how many liters of hydrogen were used during the reaction the reaction took place at stp 0c and 1.0 ATM n2g plus 3h2g 2nh3g
A cat with two kittens are sleeping or A cat with two kittens is sleeping.
'with two kittens' describe the cat. So, you should write 'is
sleeping'. But if you mean that all three of them are sleeping,
write 'A cat and his two kittens are sleeping'.
What kind of changes contribute to spontaneity
What best describes the enthalpy of formation of a substance
The energy needed to form the substance from its elements
What does it mean for heat to be transferred by convection
Energy is transferred through moving currents of warmer air or
liquid.
What does a negative H tell about a reaction
The reaction is exothermic.
What does the entropy of a reaction describe
The amount of randomness in the system
What information does the latent heat of vaporization give
The energy needed to completely vaporize a mole of a liquid
How is stoichiometry used to calculate energy released when a mass of liquid freezes
Grams liquid × mol/g × Hfusion
What is the value for G at 300 K if H 27 kJmol and S 0.09 kJmolK
What statement describes the potential energy diagram of an exothermic reaction
The potential energy of the reactants is greater than the
potential energy of the products.
What statement describes a reaction at 298 K if H 31 kJmol S 0.093 kJ(molK)
What statement best describes the second law of thermodynamics
How energy changes or moves
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.