WorksheetsHeat Tranfer
Total questions: 10
Worksheet time: 7mins
What is the direction of heat flow from a coffee to ice?
heat flows from ice to coffee
cold flows from ice to coffee
heat flows from coffee to ice
cold flows from coffee to ice
Object A is 25 degrees Celsius and mixes with object B that is 15 degrees Celsius, what is the direction of heat flow?
heat flows from B to A
cold flows from B to A
heat flows from A to B
cold flows from A to B
If hot food is placed in a fridge, and the food is the system and fridge is the surroundings, what type of reaction is this?
endothermic
exothermic
The following TEMPERATURE graph represents an....
endothermic reaction
exothermic reaction
Does the following TEMPERATURE graph represent an endothermic or exothermic reaction?
endo
exo
This energy diagram represents an....
endothermic reaction
exothermic reaction
This reaction would have...
negative enthalpy and release heat
positive enthalpy and release heat
negative enthalpy and absorb heat
positive enthalpy and absorb heat
Which correctly describes an accurate transfer of heat?
marshmellow to hot cocoa
ice to water
oven to cake
ice cream to tongue
Which correctly describes the reaction that caused this temperature graph?
the system released heat
the system absorbed heat
Chemical A at 8 degrees Celsius is mixed into chemical B at 4 degrees Celsius. If chemical B is the surroundings, this is an...
exothermic reaction
endothermic reaction
