What is the maximum possible efficiency of a heat engine that has a hot reservoir of water boiling under pressure at 125 °C and a cold reservoir at 25 °C? A 0.25 B) 0.75 0.35 D 0.80

Q: Water at triple point has how many degrees of freedom? А) 1 B) 2 с) з D

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Q: Fill in the chart below. Assume 1 mL of volume in the tubing of the Boyle's Law apparatus. Atmospher...

A: Given, Volume in the tubing, Vtubing = 1 mL Atmospheric pressure, Patm = 29.56 in Hg×3386.39 Pain Hg...

Q: A filter unit is run at a constant rate for 45 minutes during which time 3000 ft3 of slurry from a c...

A: Filtration is separation of suspended solids in liquid. There will be a screen or filtrate where liq...

Q: Which of the following is the state of matter that exists at 30°C and 1 atm? A) solid B) two answers...

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Q: For a 1D Particle-in-a-box in the n = 12 state, what is the approximate likelihood of finding the pa...

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Q: one gram of sodium hyroxide pellets is dissolved in two hundred eighty milliliters water. what is th...

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Q: A plate of iron is exposed to a carburizing (carbon-rich) atmosphere on one side and a decarburizing...

A: Given data: Concentration of carbon at 3 mm = 1.3 kg/m3 Concentration of carbon at 9 mm = 0.6 kg/m3 ...

Q: Which of the following is/are true about strain? A It is dimensionless and is the ability of the mat...

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Q: The equilibrium constant, Ke, for the following reaction is 1.20×10-² at 500 K. PCI5(g) PC3(g) + Cl2...

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Q: Calculate the theoretical %Cl' if 12.5 g of NaCl is dissolved in 200-mL of distilled water. MM NaCI ...

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Q: A compound is found to contain 63.65 % nitrogen and 36.35 % oxygen by mass. A N204 B NO4 (c) NO2 D) ...

A: Given data: Composition of nitrogen in a compound = 63.65 % by mass Composition of oxygen in the com...

Q: A solution made by dissolving 0.243 g of a new compound in 25 g of water has a freezing point of - 0...

A: Given,  mass of water = 25 g ∆Tf=-0.201oC As we know, ∆Tf=Kf×m   (1) molality of solute,m=moles of s...

Q: Molten ScCl3 can be electrolyzed to form metallic Sc. For what duration should an electrolysis be p...

A: given  current (i)=2.26 A Weight of Sc produced=25 g let us calculate the time using below equation ...

Q: A certain reaction has changes in enthalpy and entropy that are both positive. Which of the followin...

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Q: Calculate the total pressure and the composition of the vapours (mole %) in equilibrium at 60 °C wit...

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Q: The equilibrium constant, K., for the following reaction is 5.10x10-° at 548 K. NH,C(s)=NH3(g) + HCI...

A: equilibrium constant Kc = 5.1 * 10-6 at 548 K  for the reaction NH4Cl(s) <------> NH3(g)+ HCl ...

Q: In a vapor-liquid system, what do you call the temperature at which the first vapor bubble forms? A ...

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Q: Consider the following system at equilibrium where AH° = -16.1 kJ, and K. = 154, at 298 K. 2NO(g) + ...

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Q: 1- Ethylene gas and steam at atmospheric pressure are fed to a reaction process as an equimolar mixt...

A: Write the reaction as follows: C2H4g + H2Og → C2H5OHl   Given, Heat, Q = 120000 J Heat capacity of C...

Q: A water sample contains 0.4 mg/I VSS, 0.5 TDS and 1.2 mg/l TS. What is the FSS value? 0.3 0.1 0.8 0....

A: The water sample consists of various solids. Total solids (TS) comprise total suspended solids(TSS) ...

Q: What is the IUPAC name of this compound? CI H `OH

A: Given,  The following structure. The total no. of carbon in chain=5 So, pentane And aldehyde is the ...

Q: What is the theoretical yield of Ag(s) when 10.0 g Zn(s) and 30.0 mL of 0.500 M AGNO3(aq) react acco...

A: The theoretical yield of a reaction is the maximum amount of product that can be obtained from a che...

Q: All particles of a rotating body have the same, although their linear movements vary directly with t...

A: We know that,  Angular Velocity = ω= △θ△t Where, △θ = Angle △t =  Time  

Q: In a galvanic cell which of the following is true? The cathodic electrode will gain mass while the a...

A: To choose the option that provides the correct statement about galvanic cell.

Q: 2. Calculate the pressure difference between A and B in psi.

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Q: A 25% consumer loan interest is applied for the 20 thousand lira car loan you have received today. y...

A: Principle Amount is : 20,000 lira (P) consumer loan interest is 25% (r) After maturity the amount pa...

Q: A company produce 100kg of butter cookies a day using the following ingredients: wheat flour, water,...

A: Given: 100 kg of butter cookies produced: Ingredients Ratio Wheat flour 80 Water 18 Vegetab...

Q: Acid rain is precipitation having a pH that is A equal to 7 B) above 10 (c) above 7 D below 5.5

A: Given - acid rain precipitation Find - pH of acid rain rain

Q: If a 136.51 g Al rod (c = 0.900 J/g°C) is at 100.0°C and placed into 250.0 g of water at 21.8°C, wha...

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Q: One half-cell in a voltaic cell is constructed from a copper wire electrode in a 3.0 x 10° M solutio...

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Q: A voltaic cell is constructed in which the anode is a Mn Mn2+ half cell and the cathode is a Cu Cu²+...

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Q: A new drier was tested by drying a wet material with 52.8% moisture (db). It was found that 561.85 k...

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Q: Eight grams of O2 at 27 °C and under a pressure of 10 atm are permitted to expand adiabatically and ...

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Q: Assume the reaction A + B – Product follows the third order kinetics equation 1 [A]? of reactant was...

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Q: Approximately what fraction of sea level O2 pressure is present at an altitude of 42 km if the tempe...

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Q: A tank contains 1 kilogram of salt dissolved in 100 liters of water. A salt solution of 0.1 kg salt/...

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Q: Graph the following data, add a trendline, extend the trendline past 40oC (about 20 units forward), ...

A: Write the Arrhenius equation as follows: k = k0exp-EaRTlnkk0=-EaRTlnk-lnk0 = -EaRTlnk = -EaRT+lnk0  ...

Q: W = 6+ 4. The U-tube shown has a 10 mm diameter and contains mercury as shown. If 12 mL of water is ...

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Q: Express the following absolute pressures in terms of vacuum and gage pressures if the barometric pre...

A: First, note that the relation between the absolute pressure, vacuum pressure, gauge pressure, and th...

Q: QUESTION 2 Ra is 1.37 x 10-11 s 88 226 Ra has an activity of 1.06 x 109 atoms/s? 88 The decay consta...

A: GIVEN: Activity of 88226Ra = Activity R = 1.06 * 109 atoms/sec  Decay Constant 88226Ra = λ = 1.37 * ...

Q: Ammonia gas (A) diffuses through a stagnant gas mixture consisting of one-third Nitrogen (B) and two...

A: Given, total pressure, Pt=206.8 kN/m2=2.068×105 N/m2 T=54oC=327 K,  z = 0.5 mm= 0.0005m, R = 8.314 K...

Q: A fuel gas is analyzed with 0.20 H2, 0.05 CO, 0.35 CH4, 0.10 C2H6, 0.20 C3H8, 0.10 N2. It is burned ...

A: Given that, The number of moles of fuel gas F = 100 mol The number of moles of components in the fue...

Q: Potassium chlorate, a common oxidizing agent in fireworks and matchheads, undergoes a solid-state di...

A: Given the above data T=25oC=298 K balancing the given reaction, 4KClO3→3KClO4+KCl Enthalpy of reacti...

Q: Rate of movement of fluid passing one another. * O surface tension Shear O Rate of shear O Viscosity

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Q: Classify each of the following substances as either a strong or weak acid, strong or weak base, or a...

A: Acid is considered to be a strong acid that has the ability to completely ionize in a solution. On t...

Q: Show that [B], = a +º satisfy the diffusion equation when the concentration of a2[B]r 2 a[B]r diffus...

A: Given that, Concentration Br = a + br The concentration of diffusion molecules is independent of tim...

Q: Given the following heat of formation values, calculate the heat of reaction for the following: C3H8...

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Q: A voltaic cell is constructed in which the following cell reaction occurs. The half-cell compartment...

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Q: A new drier was tested by drying a wet material with 52.8% moisture (db). It was found that 561.85 k...

A: Given that, The moisture content in the wet material on dry basis MCdb = 0.528 The weight of dried m...

Q: Analyze the requirements of dyes and suggest dyes which are suitable for textile products with appro...

A: To 1)  suggest 2 dyes are suitable for textile product. 2)  the appropriateness of those 2 dyes. 3) ...