Tags & Description
Natural gas
________: Associated with petroleum deposits, consists mostly of methane, but it also contains significant amounts of ethane, propane, and butane.
Hesss Law
Hints for using ________: Work backward from the required reaction, using the reactants and products to decide how to manipulate the other given reactions at your disposal.
Endothermic
________: A reaction that absorbs energy from the surroundings.
Syngas
________ can be used directly as a fuel and as a raw material to produce other fuels.
Coal
________ has variable composition depending on both its age and location.
constant pressure
At ________, exothermic means ▵H is negative; endothermic means ▵H is positive.
Petroleum
________: A thick, dark liquid composed mostly of compounds called hydrocarbons that contain carbon and hydrogen.
Constant pressure calorimetry
________ is used in determining the changes in enthalpy for reactions occurring in solutions.
Exothermic
________: A reaction results in the evolution of heat.
Calorimetry
________: the science of measuring heat based on observing the temperature change when a body absorbs or discharges energy as heat.
Specific heat capacity
________: The energy required to raise the temperature of one gram of a substance by one degree Celsius.
▵H
________ is not dependent on the reaction side.
Enthalpy
________ is a state function.
Thermodynamic quantities
________ always consist of two parts: a number, giving the magnitude of the change, and the sign, indicating the direction of flow.
Energy
________: The capacity to do work or to produce heat.
Multiply reactions
________ to give the correct numbers of reactants and products 6.4 Standard Enthalpies of Formation.
Thermodynamics
________: The study of energy and its interconversions.
New Energy Sources
The average temperature of the earths surface is 298 K. It would be 255 K without the "greenhouse gases "6.6 ________.
Coal slurries
________ might replace solid coal and residual oil as fuels for electricity- generating power plants.
ideal gas
For a(n) ________, work can occur only when its volume changes.
Coal
________ was formed from the remains of plants that were buried and subjected to high pressure and heat over long periods of time.