QUESTION 12 80 g of ice at 0.00°c absorbs just enough heat to completely melt. What is the change in entropy of the system? Lf = 334 J/g. a. 108 J/K b. 88 J/K C. 68 J/K d. 98 J/K е. 78 J/K

Q: a. How much heat is required to change 50 grams of ice, at an initial temperature of 0°C, to steam…

A: In given question, first the ice changes to water by absorbing  latent heat of fusion then the water…

Q: An engine has a hot reservoir that contains 20 MJ of heat energy at 400º c, and a cold reservoir…

A: Given that:QH=20 MJTH=400°CQC=15 MJTC=5°C

Q: Water is slowly warmed from 17.0°C to 85.0°C. If the mass of the water is 320 g, what is the water's…

A: Solution: Given that: Mass of the water is: m=320g=0.32 kg Temperatures are:…

Q: A container with 41 g of a certain liquid (c = 4171 J/kg · °C, Lv=2224 kJ/kg) at 22 °C is heated up…

A:

Q: A Styrofoam cup holding 130 g of hot water at 97°C cools to room temperature, 23.0°C. What is the…

A:

Q: A 700.0 g block ice at -20 °C is brought into thermal contact with 30.0 g of water at 0 °C in an…

A: Since the system is adiabatic (no heat exchange with the surroundings) and at constant pressure, the…

Q: An ice tray contains 360 g of liquid water at 0°C. Calculate the change in entropy of the water as…

A:

Q: 500 g of ice at -10.0°C are placed on top of a 2.00 kg slab of aluminum at 30.0°C. The system is…

A:

Q: A 1 kg block of ice initially at -10 °˚C is placed in thermal contact with a very large reservoir at…

A:

Q: A 700.0 g block ice at -20 °C is brought into thermal contact with 10.0 g of water at 0 °C in an…

A: Since the system is adiabatic (no heat exchange with the surroundings) and at constant pressure, the…

Q: A large block of copper initially at 23.0°C is placed in a vat of hot water (83.3°C). The first 1.40…

A:

Q: In every cycle of its operation, a Carnot engine takes in 640 J of heat from a reservoir at 380 K…

A: Given, heat taken from reservoir, Q = 640 J temperature of reservoir, TH = 380 K TC = 300 K

Q: Question 6 A process is known to be spontaneous. This means that O entropy must increase only if the…

A: The entropy of the universe increases in a spontaneous process and remains unchanged in an…

Q: 80 g of ice at 0.000C absorbs just enough heat to completely melt. What is the change in entropy of…

A: Given:  The mass of the ice, m=80 g The latent heat of fusion of ice is, Lf=334 J/g. Require:…

Q: A Carnot engine draws heat energy from a hot temperature reservoir at 250°C and deposits heat energy…

A: Given, The temperature of the cold reservoir Tc=110 °C The temperature of the hot reservoir Th=250…

Q: 8. Air is compressed by a 15 - kW compressor from P, to P2. The air temperature is maintained…

A: solution- assumptions- 1. This is a steady flow process. 2. Air is an ideal gas. 3. Potential energy…

Q: An 8.0 g ice cube at -10°C is put into a Thermos flask containing 100 cm³ of water at 20°C. (a) What…

A: Given:The mass of the ice cube is, .The temperature of ice cube is, .The volume of water in thermos…

Q: Problem 7 Calculate the change in entropy of the system for reversibly heating 5.0 moles of a…

A: Given, Number of moles= 5 moles Temperature T1= 298 K T2= 346 K volume V= 2 L

Q: The temperature at the surface of the Sun is approximately 5,100 K, and the temperature at the…

A: temperature of surface of sun(TS)=5100 K Temperature of surface of earth(TE)=291K Energy(Q)=4.50 X…

Q: a heat of fusion of 80 cal/g and a heat of vaporization of 540 cal/g. What is the entropy change in…

A: Given data -                  amount of water (m)= 30 g                  latent heat of fusion (l) =…

Q: 1. A gas obeys the following equation of state: ap² T m³K bar mol where a = - P(v − b) = RT + -0.001…

A:

Q: 1. A certain gasoline engine has an efficiency of 31%. What would the hot reservoir temperature be…

A:

Q: How much heat energy is needed to change the entropy of a macrostate from 10.00 J/K to 10.01 J/K in…

A:

Q: A 4.50-kg block of ice at 0.00℃ falls into the ocean and melts. The average temperature of the ocean…

A:

Q: What is the change in entropy of the ice when a 0.050-kg ice cube at 0°C melts? The latent heat of…

A:

Q: #2. Suppose 2.35 moles of an ideal gas expands to twice its volume isothermally at 298 A) How much…

A:

Q: A reservoir at a temperature of 480 K gains 110J of heat from another reservoir. What is its entropy…

A: