In a well-insulated calorimeter, 1.0 kg of water at 20∘C is mixed with 1.0 g of ice at 0∘C. What is the net change in en
Posted: Wed Jul 06, 2022 11:43 am
In a well-insulated calorimeter, 1.0 kg of water at 20∘C ismixed with 1.0 g of ice at 0∘C.
What is the net change inentropy ΔSsysΔSsysDeltaS_sys of the system from the timeof mixing until the moment the ice completely melts? The heat offusion of ice is Lf=3.34×105J/kgLf=3.34×105J/kg.
Note that since the amount of ice is relatively small, thetemperature of the water remains nearly constant throughout theprocess. Note also that the ice starts out at the melting point,and you are asked about the change in entropy by the time it justmelts. In other words, you can assume that the temperature of the"ice water" remains constant as well.
Express your answer numerically in joules per kelvin. Use twosignificant figures in your answer.
What is the net change inentropy ΔSsysΔSsysDeltaS_sys of the system from the timeof mixing until the moment the ice completely melts? The heat offusion of ice is Lf=3.34×105J/kgLf=3.34×105J/kg.
Note that since the amount of ice is relatively small, thetemperature of the water remains nearly constant throughout theprocess. Note also that the ice starts out at the melting point,and you are asked about the change in entropy by the time it justmelts. In other words, you can assume that the temperature of the"ice water" remains constant as well.
Express your answer numerically in joules per kelvin. Use twosignificant figures in your answer.