Cards in this guide (18)
How much energy is needed to boil water at 100 degrees
Water doesn't boil until 216 degrees. So any amount of energy
won't work at 100 degrees
What does the enthalpy of reaction measure
The amount of energy that is used or released as heat in a
reaction.
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.
What does the term spontaneous mean in chemical reactions
Occurring without added energy
What would cause entropy to decrease in a reaction
The products becoming more ordered than the reactants
What information does Gibbs free energy give about a reaction
It tells if the reaction will process spontaneously or not
What factors generally determine whether a reaction happens or not
What is the value for G at 300 K if H 27 kJmol and S 0.09 kJmolK
What is the name of the field of study with laws that describe how energy is transferred to different locations and forms
What can be said about a reaction with H 620 kJmol and S -0.46 kJ molK
it can never be spontanious
Which of the following would have the best thermal conductor properties
A cup made of metal. (Apex)
How is the enthalpy of reaction related to the enthalpies of formation for the products and reactants
The difference between the enthalpy of formation of the products
minus the enthalpy of formation of the reactants is the enthalpy of
the reaction
What is revealed in the reaction CaOH2s Ca2 aq 2OH-aq
The reaction produces heat.
What variable represents thermal energy in the equation Q mc T
What is an example that shows that the combustion of methane produces 802 kJmol of energy
The enthalpy of combustion is determined by calorimetry.
What is the third quantum number of 3s2 electron in phosphorus 1s2 2s2 2p6 3s2 3p3
Which reaction shows that the enthalpy of formation of H2S is Hf -20.6 kJmol
H2(g) + S(s) —> H2S + 20.6 kJ
How much energy is required to raise the temperature of 3 kg of lead from 15 C to 20°C Use the table below and this equation: Q = mc ΔT.
