Calculate the quantity of heat to be transferred in BTU to 3 kg of brass to raise its temperature from 26.7°C to 239.9°C The specific heat of the brass is 0.394 kJ/kg k.

Q: A 78.31-hp motor that has an efficiency of 93.22% is soon to be obsolete. It will be replaced by a…

A: conversion chart  1hp = 0.7457 kW OLD MOTOR efficiency of 93.22 % means that to give 1 unit of…

Q: The interior contents and materials of a small building weigh 10 tons, and together they have an…

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Q: A lamp is tied with several rods as shown in the figure below. Determine the mass (kg) of the lamp…

A: Given:Force developed in the rod DE, TDE=150 NGravitational acceleration, g=9.81m/s2

Q: HoW 3. Determine the weightin newtons of awomen whose weight in pounds is 130. Also, find her mass…

A: Weight in newton , kg and slug from 130 pound.

Q: A gas is in a container that is able to expand or contract so the pressure inside the container…

A: Given data: The initial temperature, T1 = 20o The final temperature, T2 = 40o The governing…

Q: How much temperature change (in K) needs for 6 kg of aluminium materials with a specific heat…

A: Given data: specific heat capacity = cp = 0.92 kj/kg k Heat energy q = 530 kj mass of aluminium m =…

Q: . How much heat must be added to a 20 kg block of ice to raise its temperature from -20 °C to -5 °C…

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Q: A cup of coffee cools down by transferring heat to the surroundings at a rate of 1 kW. If the mass…

A: Given:              . Rate of heat transfer(Φ) =1 kn.              . mass of coffee (water)  =n= 0.2…

Q: 1.1 Place the following quantities of energy in order from highest energy content to lowest: 1…

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Q: 500 J/(Kg. C), is The quantity of heat required to raise the temperature of 500 g of iron by 2°C…

A: As given in question, Mass of iron = m = 500 g = 0.5 kg Change in temperature = ΔT = 2 oC Specific…

Q: The Baume (Be) scale was used to determine the specific gravity of wine in the traditional…

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Q: A closed piston-cylinder contains 5-kg of water. Initially, the temperature of the water is 225°C…

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Q: Calculate the change in internal energy of air with a temperature increase from 400 K to 700 K…

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Q: The rate of heat lost through insulation varies inversely as the thickness of the insulation. The…

A: Given, The thickness of insulation, t1=3.5 in The rate of heat lost, Q˙1=2200 BTU/hr The thickness…

Q: How much mass of aluminium materials required (in kg) with a specific heat capacity of 0.92 kJ/KgK…

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Q: what is the cost of that heat loss to the home owner for 10hours if the cost of electricity is PHP…

A: Given         Time, t = 10 hours         Rate, R = PHP 0.45/kWh Heat loss, Q = 2.46 kJ/s Find…

Q: An iron block weighs 5 Newton and has a volume of 200 cubic centimeters. What is the density of the…

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Q: A closed system consisting of 10 lb of air undergoes a polytropic process from p₁-70 lbf/in², v₁-4…

A: Given process is polytropic process  We have to find polytropic index and work

Q: Consider an alcohol and a mercury thermometer exactly 0°C at the ice point and 100°C at the steam he…

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Q: The mass of the mass of sugar is 2.25 kilograms, the weight of the bag on the surface of the moon…

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Q: Which of the following element revolves around the nucleus in an atom .a Electrons .b Neutrons .C…

A: answered: which element revolves around the nucleus -electron electron element revolves around the…

Q: A frictionless, freely moving piston-cylinder assembly with a mass of 85 kg and a cross-sectional…

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Q: Ammonia weighing 22 kg is confined inside a cylinder at a volume of 8.1 m3 and 38 oC. The cylinder…

A: Given, Mass, m = 22kg Volume, V=8.1m3 Temperature, T=38°C=311K Molecular weight of Ammonia, M = 17…

Q: The temperature of a system drops by 43.12°F during a cooling process. Express this drop in…

A: Temperature drops in system (oF) = 45 Relation between (oF) and (°C)      :…

Q: 2.5 liters of water at 60 degree Celsius is placed in a freezer. What amount of mass in kilograms…

A: Specific heat is a heat by the virtue of temperature difference and its expression is given by:-…

Q: Calculate the volume of a cylinder. in ft, which contains 53 lb of carbon dioxide at 230.45°F and…

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Q: Calculote the total work in kJ for procecs1-3 shown in the figut when the of 2kg nirtrogen system…

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Q: Q2) Water is being heated in a closed insulated pan stirred by a paddle wheel. During the process…

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Q: Change 2.223 kJ/kg-K to J/g-K

A: Following is the answerfor the quetion.

Q: Skg of Steam at pressure ot 4.9 bar is produ- ced from water at 20% . Determine the amount of heat…

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Q: While the pressure remains constant at 700 kPaa, the volume of a system of air changes from 0.3 m²…

A: Given- P=700Kpa              V1=.3m2,V2=.58m2 Determine a) AU (kJ), b) AH (kJ), c) Q (kJ). d) As…

Q: The pressure of a gas in piston-cylinder varies with volume according to PV=C. The initial pressure…

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Q: When an object of 4 kg changes it’s velocity from 10 to 30 m/s, what is its kinetic energy change…

A: mass m=4kg initial velocity V1=10m/s final Velocity V2=30m/s To Find the kinetic energy change in KJ

Q: Calculate the work for the compression in the process to 2 decimal places.

A: For solution refer below images.

Q: Which is a unit for power? (a) Btu (b) kWh (c) kcal (d) hph (e) kW

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Q: A refrigerator is used to remove 100 kJ/min of heat from a tank. If the electric power consumed by…

A: In this problem, we are asked to find the Coefficient of Performance (COP) of a refrigerator. The…

Q: 6 kg of a compressible gas in a piston-cylinder loses 193 kJ towards the environment during an…

A: According to First law of thermodynamics, We have,    Heat loss = Work done + Internal energy dQ =…

Q: 1-30 A 4-m x 5-m x 7-m room is heated by the radiator of a steam heating system. The steam radiator…

A: