A spontaneous exothermic reaction at a constant temperature and pressure of 50•C and 2.0 atm has an enthalpy decrease of 350 kJ. This reaction performs 150 kJ of useful work, which is 54% of the maximum work that could be done. What is the reaction's change of entropy? Express your answer to two significant figures and include the appropriate units.
Q: 170 g of water at 105°C is converted to steam. What is the entropy change of the water that is now…
A: latent heat of boiling water = 2256 KJ/kg = 2256 J/g mass = 170 g Heat required to change the state…
Q: Wood burns at a temperature of approximately 500. °C. One cord of seasoned (dry) firewood releases…
A: This problem can be solved using the formula for change in entropy in a process.
Q: Humans cool off by perspiring; the evaporating sweat removes heat from the body. If the skin…
A: The objective of the question is to calculate the entropy change of the universe due to the…
Q: A container with a total volume of 2.77 L is divided in half so that there are two compartments of…
A:
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: The working substance of a certain Carnot engine is 2.00 mol of an ideal monatomic gas. During the…
A:
Q: The working substance of a certain Carnot engine is 1.70 mol of an ideal monatomic gas. During the…
A:
Q: On a hot summer day, 4.00×106 J of heat transfer into a parked car takes place, increasing its…
A: Change in entropy is given by the formula: ∆S=QTwhere,∆S is change in entropyQ is heat transferT is…
Q: of the system?
A:
Q: A heat engine absorbs 2500 J of heat at 250°C and expels 2000 J at a temperature of 50°C. The change…
A: Given: Heat absorbed at T1=250°C is Q1=2500 J Heat expelled at T2=50°C is Q2=2000 J
Q: A freezer is used to freeze 1.5 L of water completely into ice. The water and the freezer remain at…
A: The expression for change in entropy is, ∆S=QT…
Q: The molar heat capacities of gases are not perfectly constant, as we've assumed, but increase slowly…
A:
Q: For a reaction of conversion of ATP into ADP at 20⁰C, calculate the reaction Gibbs free energy.…
A: Here, We have,Enthalpy ∆H =20.27 KcalEntropy ∆S = 85 cal/KelvinT =20°C =273+20 =293 K
Q: What is the change in entropy of 10 moles of ideal diatomic gas that reversibly undergoes the…
A:
Q: What is the entropy S of this system at a given temperature T, asT→∞, and T→0. We expect the entropy…
A:
Q: A Styrofoam cup holding 144 g of hot water at 1.00 ✕ 102°C cools to room temperature, 25.0°C. What…
A: Given: The mass of hot water is m=144 g. The temperature of hot water is T=100 oC. The room…
Q: On a hot summer day, 3.73 106 J of heat transfer into a parked car takes place, increasing its…
A: Given: Heat exchanged, dQ=3.73×106 J Initial temperature, Ti=31.2°C Final temperature, Tf=50.6°C…
Q: Energy is added as heat to 250 g of water at 10°C, raising its temperature one Celsius degree. a)…
A: Given: Mass of water = 250 gm Initial temperature of the gas = 10 degree Celsius = 283 K Final…
Q: Methane is heated in a steady-flow process at approximately atmospheric pressure. 1000 kJ of heat is…
A: Since you have been posted multiple questions. SO we are solving only first question for you. If you…
Q: A 68.7-g ice cube is initially at 0.0°C. (a) Find the change in entropy of the cube after it melts…
A: The given data are: m=68.7 g=0.0687 kgLf=3.33×105 J/kgT=0° C=273 K Here, m denotes the mass, T…
Q: A 130 g insulated aluminum cup at 29∘C is filled with 160 g of water at 63 ∘C. After a few minutes,…
A: We are given mass of aluminum and water. We are also given initial and final temperatures of both…
Q: Two hundred joules of heat are removed from a heat reservoir at a temperature of 200 K. What is the…
A: Given data: The heat removed from a reservoir is: Q = 200 J The temperature at which heat is…
Q: What is the entropy change of 15 g of steam at 100°C when it condenses to water at the same…
A: Part ASolution:Entropy change will be given as:dS = QT - 1where, Q is the heat amount of…
Q: A mass m of water is heated reversibly from temperature T1 to T2 at a constant pressure of P. In…
A: The change in entropy (dS) in a reversible process is given by,dQ is heat in any infinitesimal step…
Q: An engineer designs a heat engine using flat-plate solar collectors. The collectors deliver heat at…
A:
Q: One container holds 0.10 kg of water at 80 C and is warmed to 100 C by heating from contact with the…
A:
Q: Give a derivation of the ideal gas law in two dimensions, using dU=TdS+ydA where A is the area and y…
A: The equation you provided, , relates the change in internal energy (dU) of a system to its change in…
Q: What is the entropy change involved in transforming 5 g of ice at 0C and 1 atm pressure into vapor…
A:
Q: A 2.00-L container has a center partition that divides it into two equal parts as shown below. The…
A: Given n1 = numbers of hydrogen gas moles n2 = no of oxygen gas moles n1 = 0.067 n2 = 0.067
Q: 170 g of water at 105°C is converted to steam. What is the entropy change of the water that is now…
A: The expression for find change in entropy is ∆s=mLvT
Q: On a winter day, a certain house loses 5.20 x 10° J of heat from the warm 25°C interior to the cold…
A: As per Bartleby rules, we are to answer the first three sub-parts of a question when specific…
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: The density of liquid nitrogen is 810 kg/m³. What is the entropy change of the nitrogen if 140 mL of…
A: Given data:density of nitrogen, volume of nitrogen, initially nitrogen is boiled,so initial…
Q: Homework 6 Problem 4: A mass m of water is heated reversibly from temperature T1 to T2 at a…
A:
Q: On a cold day, 17400 J of heat leaks out of a house. The inside temperature is 24.0° C, and the…
A: Given Data: The amount of heat leaks is, Q=17400 J The inside temperature of the house is, Th=24°C…
Q: A 67.5-kg person typically eats about 2250 kcal per day, 21.0% of which goes to mechanical energy…
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: 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: Use the First Law of Thermodynamics to describe what happens to the Internal Energy of a system…
A: first law of thermodynamics change in internal energy(∆U)=Heat added to system(Q)-Work done by…
Q: A freezer is used to freeze 4.6 L of water completely into ice. The water and the freezer remain at…
A:
Q: It takes about 335 J to melt one gram of ice. During the melting, the temperature stays constant.…
A: Given Data: Standard Data:
Q: Arrange the given systems, represented by their active degrees of freedom, in order from highest…
A:
Q: A freezer is used to freeze 5.0 L of water completely into ice. The water and the freezer remain at…
A: The energy transferred from the water by heat can be obtained as Q=mwaterLf=ρVLf Substituting the…
Step by step
Solved in 4 steps