A large electrical power station generates 1400 MW of electricity with an efficiency of 31 %. a) How much heat does the power station need to generate this amount of electricity in one day? Qh = b) How much heat is exhausted to the environment in one day? Qc = c) The exhaust heat is transferred to the ambient air at 15 °C. What is the change in entropy of the surrounding air in one day? AS = J/K

Q: Which of the following ia/are not true about the second law of thermodynamics? a. it may provide an…

A: There are 4 laws of thermodynamics. They are given as under, (1) Zeroth law of thermodynamics (2)…

Q: 2. A 150W solar PV panel produces 15V and 7A when it is connected to a load under solar insolation…

A:

Q: Which of the following statements is an accurate way to summarize the first law of thermodynamics?…

A: Given are few statements  We have to find out which statement summarizes the first law of…

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: Analyze the given situation and determine what happens to the entropy of the area or system. Choose…

A: Situation : Arranging beddings after the sleeping To find : the effect on entropy of the area or…

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

A:

Q: 0.2kg cup of tea at Ti=368.15K is left to cool down in a room at 293.15K. Calculate the following…

A: The heat transferred to the system divided by the system temperature is the entropy change of the…

Q: A Carnot engine produces 25 kW while operating between temperature limits of 10000K and 3000K.…

A: Given,output W=25kWtemperature TH=10000Ktemperature TC=3000K

Q: A 39% maximum efficient coal-fired power plant needs to produce 600 MW of power. A. To achieve…

A: Given that A 39% maximum efficient coal-fired power plant needs to produce  a  power (P)= 600 MW…

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: What happens to the efficiency of the heat engine when the amount of heat it absorbs from the hot…

A: Given data:  Heat absorbed from hot reservoir = Heat released to cold reservoir Qh = Qc Required:…

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: Half of a 1.5-kg block of ice melts at 0.00°C. What is the change in entropy of the ice? Note that…

A: given that,mass, m=1.5 kgheat of fusion L=333kJkgT=0°C=273 K

Q: How long would my car need to skid in order to melt my tires? The mass of the car is 1665 kg. 1.…

A: 1. To find the time it would take for the car's tires to melt, we need to use the equation for the…

Q: A body at 583.37 K undergoes a reversible isothermal process. The heat energy removed in the process…

A:

Q: A Carnot engine extracts 200J of heat from a 600K hot reservoir every cycle. The cold reservoir…

A:

Q: When an aluminum bar is connected between a hot reservoir at 700 K and a cold reservoir at 300 K,…

A: Temperature of hot reservoir;T1 =700 K Temperature of cold reservoir;T2 =300 K Heat transferred…

Q: Suppose there are 10 distinguishable particles in a box divided into two equal compartments, A and…

A: The total number of distinguishable particle is N=10 The initial particles in the compartment A and…

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

A:

Q: In which state are the entropy changes equal to zero? Select one: a. Thermodynamic equilibrium O b.…

A: In an isolated system dQ= 0 as there will be no thermal interaction with surroundings From Clausius…

Q: A gasoline truck engine takes in 10,000 J of heat and delivers 2,000 J of mechanical work per cycle.…

A: Heat taken by engine: QH = 10,000J  Work done by engine: W = 2000 J

Q: Give 3 examples of change in entropy of a system whether an increase or decrease in entropy in a…

A: Answer :- Entropy In simple way we can express as :-                      entropy is defined as…

Q: In the house to rooms are separated by a wall made of brick 4 inch thick Room A is held a constant…

A: Temperature of room A (TA)=300 K Area of wall in room A (AA)=12 m2 Temperature of room B (TB)=273 K…

Q: 48. On a hot summer day, 4.00×10° Jof heat transfer into a parked car takes place, increasing its…

A: Given  Heat transfer Q=4×106 J T1=35 T2=45

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: 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: When 0.150 kg of steam at 100°C condenses to water at 100°C, what is the change in entropy of the…

A: Given: The mass of the steam is 0.15 kg. The temperature of the steam is 100oC. The latent heat of…

Q: Choose the correct statements.   a. A system with a larger number of macrostates has a larger…

A: Answer: we know the relation between entropy and microstates :       S=k ln(W) where S= entropy…

Q: 2. Two bodies A ana B with constont totai heat capacities Cp, and Cp, and aifferent initial…

A: Given data, Initial temperature of A = TAo Initial temperature of B = TBo Heat capacity of A = CPA…

Q: second law of thermodynamics states that the entropy of the universe is constantly increasing. Which…

A:

Q: From the perspective of the first law of thermodynamics, is it possible for a heat engine to have an…

A: No, it is not possible for a heat engine to have an efficiency greater than 1 according to the first…

Q: Which of the following processes does not involve a change in entropy?A. An electric heater raises…

A: Entropy change is the measure of change in thermal energy per unit temperature of the system.

Q: 65 g of aluminum at 100°C are placed in thermal contact with 65 g of copper at 0°C. The two metals…

A:

Q: A certain coal-fired power plant has a rated power capacity of P = 850 MW. The output of this plant…

A: Given that :- Power capacity , P=850 MW  Output , W=0.26Q11

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: 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: A heat engine with an efficiency of 0.45 absorbs 540 J of heat per cycle. a. How much work does it…

A:

Q: 3 moles of O2 at 1 atm and 500K expands isothermally to 0.3 m3. What is the change in entropy of the…

A: ...

Q: in a single cycle, a heat engine extracts 8.00 kcal of heat from a hot reservoir and exhausts 5.00…

A: Given that, the amount of heat extracted from the hot reservoir is Qin=8kCal the amount of heat…

Q: 9. Is the entropy of a bag of popcorn greater than, less than, or equal to the entropy of the…

A: The entropy of a bag of popcorn must be compared to the entropy of the corn kernels just prior to…

Q: Question B2i. Give an equation for the infinitesimal change in entropy, ??, of a system in terms of…

A: The objective of the first part of the question is to provide the equation for the infinitesimal…

Q: Physical systems work in a “one-way street” – the amount of information we have about the state…

A: Energy : It is the ability of an object to do work. There are different types of energy. Example:…

Q: 3) Consider a system consisting of one particle with two states, one of energy 0 and one of energy…

A:

Q: A heat engine provides a net power output of 14 kW and has an efficiency of 23 %. The engine rejects…

A: