What is the entropy change of 15 g of steam at 100°C when it condenses to water at the same temperature? ΔS=ΔS=Incorrect J/K 45-g of water at 14°C is heated until it becomes vapor at 100°C. Calculate the change in entropy of the water in this process. ΔS=ΔS=Incorrect J/K

What is the decrease in entropy (in J/K) of 27.5 g of water that condenses on a bathroom mirror at a temperature of 32.0°C, assuming no change in temperature and given the latent heat of vaporization to be 2450 kJ/kg? J/K

On a hot summer day, 2.00 x 10° J of heat transfer into a parked car takes place, increasing its temperature from 35.5°C to 44.4°C. What is the increase in entropy (in J/K) of the car due to this heat transfer alone? J/K Additional Materials CS Scanned with CamScanner O Reading

A Styrofoam cup holding 142 g of hot water at 1.00 ✕ 102°C cools to room temperature, 21.0°C. What is the change in entropy of the room? (Neglect the specific heat of the cup and any change in temperature of the room. The specific heat of water is 4,186 J/(kg · °C).)__________ J/K

Heat flows into 1kg of ice at 0°C, melting it, then warming the liquid up to 100°C, then boiling the liquid to vapor. 1) How much heat does it take to melt 1kg of ice, starting at 0°C? Q= Submit 2) How much does the entropy increase when the ice melts? Sliquid-Sice= J/K Submit 3) How much does the entropy increase when the 100°C water boils? J/K Submit 4) For the liquid water, the specific heat is 4184 J/kg-K, nearly constant over the 0°C to 100°C range. How much does the entropy increase in the warming from 0°C to 100°C? J/K Submit Help 5) By how much does the dimensionless entropy, S/k, increase per molecule of ice as it melts. Use 0.018 kg/mole as the molecular weight. Submit

Q3 1 kg of liquid water at 77°C mixed with 1 kg of liquid water at 17°C until thoroughly mixed. Find: a) the final temperature of the mixture b) the entropy change of the hot water c) the entropy change of the cold water d) the total entropy change Given: the specific heat of liquid water is 4.2 kJ kg-¹ K-¹