Heat and dust
What is inside
Exo or Endo
Exchange
This and that
200
This quantity, equal to ½mv², increases for gas molecules as temperature rises.
What is the Kinetic Energy
200
For an ideal gas, internal energy depends only on this single variable, not on pressure or volume.
What is the temperature in Kelvins.
200
!! DAILY DOUBLE !!
Systematic check of accounting records and procedures by an accountant.
What is an audit?
200
Hand warmers work because sodium acetate reacts with oxygen in this slow exothermic process.
What is oxidation?
200
This term refers to a process that occurs without the transfer of heat or matter between a thermodynamic system and its surroundings.
What is an adiabatic?
400
In kinetic theory, gas molecules are assumed to undergo these types of collisions.
What are perfectly elastic collisions
400
At low temperatures, this type of an ideal gas, like helium or argon, has an internal energy of 3/2 nRT because its molecules can only move in three translational directions.
What are monoatomic gases?
400
The plant matter rots generating this.
What is Methane and heat. Greenhouse gases and heat.
400
People thought you could turn iron and lead into a precious commodity.
What is gold?
400
This thermodynamic state function, defined as H -TS
determines the spontaneity of a reaction at constant temperature and pressure.
What is Gibb's free energy?
600
The order in which liabilities are listed on the balance sheet. Liabilities are to be listed in the order they are to be repaid.
What is maturity date?
600
By removing the work done at constant pressure from the total energy of a gas, we get this.
What is enthalpy?
600
A bunny carries out cellular respiration, breaking down sugars in its cells. This reaction is ---------------.
C6H12O6 (aq) +6O2 (g) --> 6CO2 (g)+6H2O(g) +2840 kJ/mol
What is an exothermic reaction.
600
This driving force causes double replacement reactions to occur.
What are collisions and lowering of potential energy?
600
This specific quantity, often denoted as 'w', represents the energy transferred by a system to its surroundings through a mechanism such as a moving piston.
What is work done by the system?
800
At the same temperature, molecules of a lighter gas move faster than a heavier one because both have the same average value of this quantity
What is root mean square velocity.
800
H2C2 (g) + HCl (aq) --> H2C2.HCl (aq)
The standard enthalpies of formation (
Delta H^0)
for each of the compounds are:
C2H2 = 227.4 kJ/mol
HCl= - 92.3 kJ/mol
H2C2HCl = 37.3 kJ/mol
The change in the heat is equal to this value.
What is -97.8 kJ/mol
800
This branch of chemistry explains how much heat will be needed to launch a space shuttle into outer space.
What is thermochemistry.
800
Balance the equation:
Fe + O₂ → Fe3O4 (s)
3Fe (s) + 2O₂ (g) → Fe3O4 (s)
800
The Carnot cycle consists of four processes: two adiabatic ones and two of this type, where temperature remains constant.
What are isothermal processes?
1000
The average distance a molecule travels between collisions limits how efficiently a gas conducts heat.
What is mean free path
1000
A hot glass jar shattered when plunged into cold water because this property means heat can't move through the glass fast enough, creating uneven contraction
What is thermal transfer, or heat transfer, or thermal conductivity?
1000
An entry that has more than one debit or more than one credit.
What is a compound entry?
1000
A metal reacts with an acid, producing hydrogen gas and a different solid compound. What type of reaction is this?
What account number does expense accounts belong in?
1000
This has to be constant for a process to occur when the enthalpy change is a measure of the heat change accompanying the process?
What is Pressure?
1200
According to kinetic theory, the thermal conductivity of an ideal gas depends on temperature but is independent of this variable, which might seem counterintuitive.
What is the pressure.
1200
When the heat transfer due to convection, conduction and radiation stops.
What is at thermal equilibrium
1200
In an exothermic reaction, the energy needed to break bonds in the reactants is less than the energy released when these are formed in the products
What are new bonds?
1200
The moles of water produced in the following reaction will be:C2H5NO2 + O2 --> CO2+H2O+N2
What is 10 mols of H2O?
1200
The efficiency of a Carnot engine depends only on these two external values, not on the working substance used.
What are the temperatures of the reservoire?
1400
When two gases at two different temperatures are allowed to mix, and the net exchange of kinetic energy due to collisions =0. The gases have achieved this state.
What is a thermal equilibrium.
1400
For any strong acid–strong base reaction, this quantity is roughly -57 kJ/mol of water formed, because the net ionic reaction is always the same: H⁺ + OH⁻ → H₂O.
What is the heat of neutralization.
1400
On an energy diagram for an exothermic reaction, the products sit lower than the reactants, meaning this thermodynamic quantity has a negative value.
What is enthalpy?
1400
The molecular equation for double replacement reaction of lithium phosphate reacting with zinc sulfate.
Li3PO4 + ZnSO4 -> Li2SO4 +Zn3(PO4)2
1400
The total entropy of an isolated system can never decrease over time - a statement of this law.
What is the second law of thermodynamics.