Q2: A: Some of aluminum, having amass 20 kg, cools from a temperature of 120 °C to 70°C. If the specific heat capacity of aluminum is (900 J\kg. °C ), how much the heat energy is lost by the aluminum ?

Q: Q4) Write the relation between melting point temperature of ice with pressure? At 1 Atm, water melts…

A: Melting point is the temperature required for the solid to change its phase from solid to liquid.…

Q: Q1) a hot gas at 325°C flows through a metal pipe of 10 cm OD and 3 mm thick. It is insulated with a…

A: Given Data  To Find The insulation thicknessHeat loss per m length of the pipe

Q: Ice cubes are made by taking heat away from water. Suppose you put 2.50 kg of 40 degrees C water in…

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Q: Two metals of equal amount but with different heat capacities are subjected to the same amount of…

A:

Q: Question # 1 A solid of thickness L is insulated so that conduction occurs only in the y direction.…

A: As per our company guidelines, we are supposed to answer only first question. So kindly repost other…

Q: Physical Chemistry: Show complete solution. Ice cubes are made by taking heat away from water.…

A: The concepts that the question is based on are latent heat and sensible heat. Latent heat (Q1): It…

Q: One hundred kilograms per second of a hydrocarbon are heated from 20°C to 40°C through the tubes of…

A: Given that  mass flow rate ,mT = 100 kg/s T1 = 20 C T2= 40 C  Crude oil flow is divided evenly among…

Q: 4- Consider a wall (20x40) cm [k=12 w/m °C is heated by convection on one side and cooled by…

A: Given, The area of the wall, A = 20 cm×40 cm = 800 cm2×1 m210000 cm2 = 0.08 m2   The heat transfer…

Q: ou oversee cooking a 30-lb turkey that is initially at 20 ̊C by exposing it to the 200 ̊C…

A: Step 1:Step 2:Step 3:Step 4:

Q: Find the specific heat of water if 209 J is required to increased the temperature of 50.0 g of water…

A:

Q: Q.4: A very long cylindrical rod is placed along the positive x-axis with one end at x = The rod is…

A: Given data: Temperature of the rod a cylindrical rod varies with distance and time. Sides of rod are…

Q: Determine the standard heat for: H2S(g)+2H20(g) 3H2(9)+S02(g) at 1000K

A: Given Reaction,                   H2S (g) +2H2O (g)→3H2 (g) +SO2 (g)     we have to determine the…

Q: A flat sheet of iron at 300 K does not receive any radiation from its surroundings. The metal is 10…

A: Density is defined as the ratio of the mass of the substance to the volume of the substance. Some of…

Q: Steam at 235°C is flowing inside a steel pipe (k = 61 W/m ∙ °C) whose inner and outer diameters are…

A:

Q: How many heat are needed to change 50 kg of ice at -10.0 °C to steam at 250 °C?

A: Given: m  = 50 kg Ti = -10.0 °C (Ice) Tf = 250 °C (Steam)

Q: I understand that we have to use this formula Heat current=(k. Area. change in temperature)/length…

A: Firstly, the brass rod one end is in boiling water, which means this rod is hot. While the Copper…

Q: How much heat in kJ must be transferred to 10 kg of air to increase the temperature from 100C to…

A: From first law of thermodynamics, dU=dq-dw, Now dw=PdV, dU+PdV+VdP=dQ, As dP =0,

Q: In a 2-shell and 16-tube passes heat exchanger, water (Cp = 4180 J/kg·°C) is used to cool hot oil…

A: Given data: For water: Cp=4180 J/kgoC Ti=25oC m=2kg/s For oil: Cp=2100J/kgoC Ti=180oC m=2.5kg/s…

Q: how many joules are required to heat 150 grams of liquid water from 0 degress celsius to 100 degrees…

A: The heat energy in joules required to raise the given temperature of the water is to be determined.

Q: The temperature variation of molar heat capacities, Cpm / (J K' mol') for carbon dioxide gas are a =…

A: Whenever we need to rise the temperature of a substance, we have to supply heat. The amount of heat…

Q: A steel tube (k =15 W/ m-°C) whose inner and outer diameter 5 cm and 7.6 cm respectively, is covered…

A: Given Data  The inner diameter  of the steel tube (Di)=  0.05 m  The outer diameter of the steel…

Q: Two samples of water are heated from 20oC to 60oC. One of the samples requires twice as much heat to…

A: ,

Q: How many heat are needed to change 50.0 grams of ice at -15.0 °C to steam at 120.0 °C?

A: Given: mass of ice = 50g=50g×kg1000g=0.05kg temperature of ice = -15°C=-15+273K=258K temperature of…

Q: What is the principle of thermal balance? th

A: Given  Term - Thermal balance Find what is the principle of thermal balance

Q: Calculate AS when two iron blocks, each of mass 1.00 kg, one at 200 K and the other at 25 K, are…

A: Mass of each block = 1.00 Kg Temperature of one block = 200 K temperature of other block = 25 K…

Q: 700 kJ of heat is required to melt 2kg of ice at 0oC to equal weight of water at 23oC. If 2000 cm3…

A: Givenmass of water m=2 kginitial temperature of water=0oC final  temperature of water=23oCHeat…

Q: 4- Consider a wall (20x40) cm [k=12 w/m °C is heated by convection on one side and cooled by…

A:

Q: Find the two-dimensional temperature distribution T(tz) under steady state condition. Where, To-20…

A: T0 = 20 C = 293 K T(L) = 1000 C = 1273 K Density (p) = 800 kg/m^3 k = 200 W / m K Cp = 2500 J/ kg K…

Q: A dairy product having a moisture content of 75% is to be frozen in a blast freezer where convective…

A: The freezing time of a food product can be estimated using two methods, pham's method and planck's…

Q: A sealed constant-volume container has 0.8 kg of liquid water and 0.2 kg of water vapor at 0.10 MPa…

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Q: (2.11) A graphite heat exchanger is constructed by drilling circular channels in a solid block of…

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Q: The thermal conductivity of a plane wall are maintained ab (Pi) and (T₂). Show that the heat flux…

A: Given,

Q: 15.0 g sample of aluminum, whose temperature is 4.0 °C, experiences an energy change of 189 J. The…

A: This question is based on the concept of Heat transfer. Data given: Substance used  = Aluminum Mass…

Q: Determine the amount of heat needed to vaporize 26.7 g of water at 100C

A: Note: Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: Record the T1 and T2 values. How much energy is required to heat 65.0 g ice to from 0 Celsius to 79…

A: Mass (m) = 65 gm T1 = 0 C = 273 K T2 = 79 C = 352 K.  specific heat capacity = 4.184 J/g.C To find :…

Q: A chiller cools liquid water for air-conditioning purposes. If 1.5 kg/s water at 20 °C, 100 kPa is…

A: given data,Initital temp, Ti = 200Cfinal temp., Tf = 50CInitial pressure, Pi = 100 kpamass of water…

Q: Choose the correct option: 6. To which concept does the following definition belong? "Energy that is…

A: Asked; Energy is transferred from hotter object to colder one, which defination justify above…

Q: You oversee cooking a 30-lb turkey that is initially at 20 ̊C by exposing it to the 200 ̊C…

A: Setting Up the Model and Calculations ( b, c) b) Time to Cook (Center Reaches 90°C)We use FindRoot…

Q: Find the specific heat of water if 209 J is required to increased the temperature of 50.0 g of water…

A: Given  Mass of water (m) = 50 g                              m = 0.050 kg Initial temperature of…