Thermo- Chemistry Heat Transfer Thermo Equations Phase changes F

Thermochemistry Energy stored in chemical bonds. Back to the big board

Thermochemistry The amount of heat needed to increase the temperature of an object by 1 o C Back to the big board

Thermochemistry A system which loses heat as the surroundings heat up. Back to the big board

Thermochemistry Positive Enthalpy Change. Back to the big board

Thermochemistry Convert 5 calories to Joules Back to the big board

Heat Transfer Water in a pool heats up slower than the cement around the pool. Which has the highest specific heat capacity? Back to the big board

Heat Transfer Define Specific Heat Back to the big board

Heat Transfer When 800J of heat are added to 10g of olive oil at 25 o C, the temperature increases to 30 o C. What is the specific heat of olive oil? Back to the big board

Heat Transfer A pebble is heated and placed in a foam cup containing 25ml of water at 25 o C. The temperatures rises to 28 o C. How much heat was released by the pebble? Back to the big board

Heat Transfer What is the specific heat of a 5g pebble at 100 o C if it is placed in 50ml of water at 20 o C and the temperature rises to 23 o C? Back to the big board

Thermochemical Equations Define “Heat of Reaction”. Back to the big board

Thermochemical Equations Is the change in enthalpy positive or negative for an endothermic reaction? Back to the big board

Thermochemical Equations Write the thermochemical equation for the combustion of C 3 H 8 if the heat of combustion is 2220 kJ/mol Back to the big board

Thermochemical Equations Do reactants or products store more energy in an exothermic reaction?. Back to the big board

Thermochemical Equations When 2 mol of magnesium react with 1 mol of oxygen, 2 mol of magnesium oxide form and 1204kJ of heat are released. Write the thermochemical equation. Back to the big board

Phase changes Define molar heat of fusion. Back to the big board

Phase changes How much heat is required to melt 5g of ice at 0 o C?. Back to the big board

Phase changes Draw a phase change diagram with the correct shape for a substance with the following values: Boiling point 90 o C, Melting point 20 o C, It takes more energy to melt the substance than to vaporize it Back to the big board

Phase changes How much heat is absorbed when 5g of ice at 0 o C changes to water at 25 o C? Back to the big board

Phase changes How much heat is released when 5g of vapor at 110 o C changes to ice at -10 o C? Back to the big board

Final Jeopardy! And the answer is...