Anyone know any of these? Pls help, need to correct asap
Energy changes occur as *
A.heat transfer
B.work
C.power
D.a combination of heat transfer and work
When heat energy is absorbed from surroundings *
A.it is an exothermic process
B.it is an endothermic process
C.a chemical change must occur
D.it feels warm to the touch
1 Calorie is equal to (mark all that apply) *
A.2 points
B.1,000 kilocalories
C.1 kilocalorie
D.1,000 calories
Heat capacity depends on *
A.pressure
B.mass
C.density
D.joules
1 calorie is equal to *
A.4.184 J
B.1,000 J
C.6.02x10²³ J
D.8.314 J
Condensation is *
A.a chemical exothermic process
B.a physical exothermic process
C.a chemical endothermic process
D.a physical endothermic process
What kind of thermochemical equation is represented below? *
A.endothermic
B.exothermic
C.neutralization
D.single replacement reaction
When 435 J of heat is added to 3.4 g of olive oil at 21°C, the temperature increases to 85°C. What is the specific heat of olive oil? Show your work for credit. *
A.94,656 J/g°C
B.2.0 J/g°C
C.23 J/g°C
D.1.5 J/g°C
A positive Δ H value indicates that the reaction is *
A.endothermic
B.exothermic
C.neutral
D.synthesis
