Suppose you toss 100 coins starting with 60 heads and 40 tails, and you get the most likely result, 50 heads and 50 tails. What is the change in entropy?

Q: What is the change in entropy as 58.3 J flows from 331°C to 197°C?

A: Given: Q=58.3j T1=331 deg.c=604K T2=197 deg.c=470K Lets's find Change in entropy.

Q: If I know that the change in entropy of a system where heat was added is 30 J/K, and that the…

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Q: A heat source generates heat at a rate of 55.0 W (1 W=1 J/s)55.0 W (1 W=1 J/s). How much entropy…

A: Given;-  A heat source generates heat at a rate of  P = 55 W = 55 J/sec  The surrounding temperature…

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: A Styrofoam cup holding 125 g of hot water at 100°C cools to room temperature, 20.0°C. What is the…

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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: As the metals reach thermal equilibrium, what is the entropy change of the universe? Express your…

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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…

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Q: A student rolls 2 dice (an object that is a cube with faces numbered 1-6). The dice are "fair,"…

A: Entropy (S) of a macrostate that consists of Ω microstates may be given in terms of the Boltzmann…

Q: If you add 400 J of heat to a system so that the final temperature of the system is 200 K, what is…

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

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Q: The entropy for some part of an isolated system may diminish, but must always result to a net…

A: Entropy of a system is given by ∆QT. For isolated system heat can not enter or exit from system. So…

Q: Consider taking two identical ice cubes out of the freezer.  You place one in a cup and let it melt;…

A: Given Two identical ice cubes out of the freezer,  You place one in a cup and let it melt; you take…

Q: We mix 8 litre of helium with 2 litre of argon at 300 K and atmospheric pressure. Calculate the…

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Q: A sophomore with nothing better to do adds heat to 0.350 kgof ice at 0.0C until it is all melted.…

A: Ice is at a temperature 0°C. The expression for the change in entropy of object is, ∆s=-mLiceT…

Q: We mix 5 mole of oxygen with 5 mole of nitrogen at 300 K and atmospheric pressure. Calculate the…

A: Given, The number of moles of oxygen no=5 moles. The number of moles of nitrogen nn=5 moles The…

Q: What is the decrease in entropy (in J/K) of 28.5 g of water that condenses on a bathroom mirror at a…

A: The temperature of a bathroom is, T=35 °C=308 K The mass of water is, m=28.5 g=0.0285 kg The amount…

Q: If I add 30J of heat to a system so that the final temperature of the system is 300K, what is the…

A: Entropy change = [Heat change in process÷ Temperature ] Heat change = 30J Temperature = 300K

Q: What is the entropy change of a gas in J/K (to 2 decimal points) when one mole of a perfect gas…

A: According to question--- Given value--- number of mole = 1 initial volume = 4.87 m3 . final volume…

Q: A 75 g ice cube at 0∘C is placed on a very large table at 20∘C. You can assume that the temperature…

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Q: Exactly 500 grams of ice are melted at a temperature of 32°F. (Lice = 333 J/g.) What is the change…

A: Given: Here are the given data, Mass, m=500 g Temperature, T=32°F=273°K Lice=333 Jg To find: The…

Q: The surface of the Sun is approximately at = 700 K, and the temperature of the Earth’s surface is…

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Q: Two objects which is the B1 (T = 40 C) and B2 (T = 18 C), has experienced entropy changes of 6.4 x…

A: The change in entropy of an object at a particular temperature is given by the equation dS=dQTdS is…

Q: One container holds 0.10 kg of water at 80 C and is warmed to 100 C by heating from contact with the…

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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: A boulder with a mass of 75.0 kg, starting from rest, falls a distance of 20.0 m into a shallow…

A: Mass M = 75.0 kg Temperature T = 301 k Distance h= 20.0 m

Q: An ice tray contains 500 g of water. Calculate the change in entropy of the water as it freezes…

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Q: A sophomore with nothing better to do adds heat to 0.500 kgkg of ice at 0 ∘C∘C until it is all…

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Q: Consider a system of 2 6-sided dice where the sum of the dice is the macrostate. What happens to the…

A: Given data, Given a set of three 6 sided dices. Where, a microstate represents the event for that…

Q: You have two heat sinks. One is held at a constant temperature at 20 degrees C, and the other is at…

A: Given, Temperature of first heat sink T1 = 20° C = 20 + 273 K = 293 K Temperature of second heat…

Q: A puddle containing 1.10 kg of water at 0°C freezes on a cold night, becoming ice at 0°C. What was…

A: Given that The mass of the water 1.10Kg covert into gram                         m = 1100g Latent…

Q: What change in entropy occurs when a 0.12 kg steam at 121 deg C is transformed into ice at -28 deg…

A: The mass of the steam: The initial temperature of the steam: The final temperature of the ice:…

Q: A tank of 100-g liquid water at 100°C is put in thermal contact with another tank of 300-g water at…

A: mass of water in first tank = 100 g Initial temperature of water in first tank = 100oC mass of water…

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…

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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…

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Q: What is the change in entropy of 0.130 kg of helium gas at the normal boiling point of helium when…

A: Given data m=0.130 kgTB=4.216 KLhe=2×104 J/kg

Q: A cylinder of gas has a temperature of 32F. a) If 205J is added to the system at constant…

A: Given Gas is at T=32oF=273.15K   a) The amount of heat added to the system is Q=205J So at a…

Q: A phase change, such as melting or freezing, occurs at a fixed temperature. What happens to the…

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Q: A 500-g chocolate bar starts to melt at 45OC. What is the change in entropy?

A: The change in entropy △S is related to temperature T by, △S=QT. Here, Q is the heat energy required…