A calorimeter is used in an experiment. The initial temperature of the water was found to be 32 degrees Celsius. The final temperature was found to be 48 degrees Celsius. Discuss the direction of transfer of energy and the resulting change in enthalpy (if any).

Question

anonymous · Answer

I have everything except the enthalpy figured out...

anonymous · Answer

so, my question is; is there a chnage in enthalpy, and if so, why?

chmvijay · Answer

there is change in enthalapy bcoz there is change in temperature :)

anonymous · Answer

Is it that simple?

chmvijay · Answer

noooo :)

anonymous · Answer

so the enthalpy is negative for positive?

chmvijay · Answer

ΔH < 0 and ΔT > 0  dlta T= 48-32 = +16°C in this case :)
since the temperature of water is raised from 32 to 48 °C there is liberation of heat :) mean reaction is going exothermic hence delta H will be -ve :)

chmvijay · Answer

did u get it ????

anonymous · Answer

Yes, thank you!

chmvijay · Answer

yw