1.5 kg of a liquid with a constant specific heat of 2.5 kJ/(kg.K) is stirred in a well-insulated chamber causing the temperature to rise by 15°C. How much is W (work) for the process?

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: If you want to boil water at 75 ° C instead of 100 ° C, which of the following do you need to do? A)…

A: Boiling is a phenomenon where the liquid is converted to a vapor form. The temperature required to…

Q: 0.3 kg of gas is cooled from 1200C to 50°C at constant volume in a closed system. Calculate the heat…

A:

Q: 1. A 7-meter-long steel pipe was installed by a man during a cold whether at 20°C. What would be the…

A:

Q: 4. A rigid tank has a volume of 0.01 m³. It initially contains saturated water at a temperature of…

A:

Q: 3. A long hollow cylinder has inner and outer radii R, and R2, respectively. The temperature of the…

A: Given details, For Hollow Cylinder of  Inner radius=R1 at Temperature T1 Outer radius=R2 at…

Q: Nitrogen gas has a heat capacity of 20.8 and 29.1 J/mol-C at constant volume and constant pressure…

A: Given Data: Specific heat capacity of N2 at constant Volume;Cv=20.8 J/mol °CSpecific heat capacity…

Q: When 120 kJ work is done on a closed system during a process, the total energy of the system…

A: Given that, the system is a closed system, where work is done on the system. Hence, work will be…

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: Select all that apply for  saturated vapor:     It refers to a point on a T-v diagram on a specific…

A: The saturated vapor is a substance that exists completely as vapor at its saturation temperature. On…

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: Q4. A 4.0-cm diameter sphere is maintained at 38°C and submerged in water at 15°C. Calculate the…

A:

Q: Q2/ The specific heat capacity of copper metal is 0.38 J /K.g. Calculate the temperature rise of a…

A: Given: m= 100g  Cp = 0.38J/g.K Q = 250J

Q: A pipe (ID: 130 mm, OD: 165 mm, k=15 W/m²-K, Length: 2 meters)is insulated with several materials,…

A:

Q: Find parameter of a and b from specific heat=a+b*10^-4T when T and Cp data is given. I need how to…

A: We need to find the way to determine the parameter of a and b when the specific heat equation is…

Q: 12.3-2. Determination of Thermal Conductivity. In determining the thermal conductivity of an…

A: Heat flux q = 35.1 W/m2Temperature on one side T1 = 318.4 KTemperature on other side T2 = 303.2 K…

Q: The air at a dry ball temperature of 80 ° C and 8% RH is passed over the cooling coil so that the…

A:

Q: Estimate the specific heat (kJ/kg°C) for liquid ammonia at Ammonia at 350kPa and -10°C. Using the…

A: Given P=350 kpa Temperature=-10 °C Backward-difference method to find specific heat CP=∆h∆TP From…

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: A 5 kg solid block is heated at a rate of 400 W by an oven. If the block is initially at 25°C, then…

A: In Chemical Engineering, heat transfer describes the flow of heat due to temperature differences and…

Q: Air at a dry ball temperature of 85° C and 5% RH is passed over the cooling coil so that the air dry…

A: Given Data: Dry bulb temperature TDB1 = 85 °C Relative Humidity RH% = 5% Dry bulb temperature TDB2 =…

Q: In order to increase the temperature of an unknown metal sphere by 11.89°C. 875.13 J of heat was…

A: The density of a substance is defined as the mass contained in a unit volume of the substance. The…

Q: 8. For polytropic process the heat and work can not cross the boundary of the system * False True

A: Given, Concept of Polytropic Process Find,  For polytropic process the heat and work cannot cross…

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: Ethane is contained in a piston/cylinder arrangement at a temperature of 100oC and a pressure of 10…

A: The temperature attained by the ethane after passing the cylinder is to be calculated for the given…

Q: The air at a dry ball temperature of 80 oC and 4 % RH is passed over the cooling coil so that the…

A: From psychrometric chart at 80 oC dry bulb temperature and 4% relative humidity: Enthalpy: 138.4 kJ…

Q: What is the enthalpy change needed to heat 1 kg of water at 0.4 MPa and 4°C to steam at 150°C and…

A:

Q: None

A:

Q: 7) What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold…

A:

Q: A 5 kg of steam at 121C and 90% vapor undergoes a isometric process until the pressure becomes 28…

A:

Q: A spherical furnace has an inside diameter of 6 ft and an outside diameter of 8 ft. The furnace…

A: Given: Inside diameter is 6 ft Outside diameter is 8 ft (r1) Shell of two different materials each…

Q: If the sample of material has a mass of m = 9.20 g, calculate the specific heat when this material…

A: Given data: The amount of heat added at 43.7 0C = 183 J Amount of heat added at 239 0C = 785 J…

Q: 90. For a glass, thermal conductivity, density and specific heat are 0.78 W/mK, 2700 kg/m³ and 0.84…

A: Given  Thermal conductivity k = 0.78W/mK Density d = 2700 kg/ m2 Specific heat Cp = .84KJ/kg K…

Q: 5 kg liquid water is heated on a stove from 30 to 90C, how much work is required if specific heat is…

A: The energy can neither be created nor destroyed. Energy in the universe is constant. One form of…

Q: A 7 cm-thick beef steak is being frozen in a -40°C room. The product has 73% moisture content,…

A: Freezing time using plank's constant is given by; tF={ρF Lf/TF-Ta} {[P' a/h] + [ R' a2/k]}where; ρF…

Q: at a constant temperature, a gas gained an amount of heat (30 J). The gas expands and exerts a work…

A: This problem can be solve by the help of First law of thermodynamics. ΔU=Q+W ΔU is the change in…

Q: Water with mass of 293.07 grams and at 15oC. is heated at constant pressure. the water is completely…

A: for water isCP= 4.187 kJ/kgK, T1=15oC,T2=100oC Q=mCPT2-T1 Q=293.071000×4.187×100-15 KJ Q=104.3 KJ

Q: (a) Assume that there is a negligible thermal gradient in the wall of the container (dT/dr is…

A: Consider a spherical conatiner is used to store reacting chemicals, whichresults in a uniform heat…

Q: Compare the heat given off by 1.0g of boiling water at 100 degrees celcius when it comes in contact…

A: When contact with skin 1 g of boiling water T=100℃→Changes to T=37℃ 1 g of Steam T=100℃→ Changes to…

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…