Thermochemistry Test Review

Define: Energy

• the quantity of heat that raises the temperature of 1 g of pure water 1°C

• the heat absorbed or released by a chemical reaction

• the capacity to do work or to supply heat

• a process that loses heat to the surroundings

Tags

NGSS.HS-PS3-2

Define: Calorimeter

• In any chemical or physical process, energy is neither created nor destroyed.

• the heat absorbed or released by a chemical reaction

• a process that loses heat to the surroundings

• a device used to measure the amount of heat absorbed or released during chemical or physical change

Define: Law of Conservation of Energy

• In any chemical or physical process, energy is neither created nor destroyed.

• a device used to measure the amount of heat absorbed or released during chemical or physical change

• the heat absorbed or released by a chemical reaction

• the quantity of heat that raises the temperature of 1 g of pure water 1°C

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-4

Define: Heat of Reaction

• a device used to measure the amount of heat absorbed or released during chemical or physical change

• the capacity to do work or to supply heat

• In any chemical or physical process, energy is neither created nor destroyed.

• the heat absorbed or released by a chemical reaction

Tags

NGSS.HS-PS1-4

Define: Specific Heat

• the amount of heat that must be added to one unit of mass of the substance in order to cause an increase of one unit in temperature

• a process where energy is absorbed by the system from the surroundings

• the quantity of heat that raises the temperature of 1 g of pure water 1°C

• a process that loses heat to the surroundings

Tags

NGSS.HS-PS3-4

Define: Heat

• a process that loses heat to the surroundings

• a device used to measure the amount of heat absorbed or released during chemical or physical change

• the amount of energy that is transferred from one system to its surroundings because of a temperature difference

• the heat absorbed or released by a chemical reaction

Tags

NGSS.HS-PS3-4

Define: Calorie

• 
  a process that loses heat to the surroundings

• the quantity of heat that raises the temperature of 1 g of pure water 1°C

• the heat absorbed or released by a chemical reaction

• the amount of energy that is transferred from one system to its surroundings because of a temperature difference

If a 235 g sample of steam at 135 C is cooled to 112C, find the change in heat content of the system.

• 10.8 kJ

• 22.6 kJ

• -10.8 kJ

• -22.6 kJ

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

• A 365 g sample of ice at –67 C is heated until its temperature reaches –31 C. Find the change in heat content of the system.

• -27.7 kJ

• 54.9 kJ

• 27.7 kJ

• -54.9 kJ

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

Given that the specific heat of copper is 0.385J/g∙K and if 81.2J of heat is applied to 17.8g of copper by how much will the temperature of the copper increase?

• 1.18 C

• 11.8 C

• 118.4 C

• -11.8 C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4