Endothermic And Exothermic Reactions Question Preview (ID: 40791)
Endothermic Or Exothermic I.
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Ice cream melting on a hot sunny day
a) Endothermic
b) Exothermic
c)
d)
Walking on hot sand feeling it on your feet in the summer, heat transfers from
a) the sand to the sun
b) the sand to your feet
c) your feet to the sand
d)
Sitting down on a cold metal bench, the bench feels cold becuase
a) heat is absorbed by the bench from your body, leaving you feeling it as cold
b) heat transfers from the ground to the bench
c) heat is absorbed into your hand from the bench, so it feels cold
d) no heat is transferred, so it feels cold
a puddle of water evaporating into a gas in the sunlight
a) Endothermic
b) Exothermic
c)
d)
In a chemical reaction, if more energy is required to make the chemical bonds than to break them apart, the reaction is endothermic, so we see a
a) decrease in temperature
b) increase in temperature
c) mo change in temperature
d)
In a specific heat problem, what unit is q?
a) joules
b) grams
c) J/ g * ° C
d) ° C
In a specific heat problem, what unit is m?
a) joules
b) grams
c) J/ g * ° C
d) ° C
In a specific heat problem, what unit is C?
a) joules
b) grams
c) J/ g * ° C
d) ° C
In a specific heat problem, what unit is ΔT?
a) joules
b) grams
c) J/ g * ° C
d) ° C
An exothermic reaction is where heat is _______________
a) released
b) absorbed
c) degarded
d) taken in
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