A 2 kg. block of copper is removed from a freezer where its temperature was maintained at -19 Co . How much heat does the copper absorb as it is warmed to -3 Co ? (The specific heat capacity of copper is 390fraction numerator J over denominator k g space C to the power of ring operator end fraction).

Q: If a piston moves a distance dx, what is dW, the work done by the gas?

A: The objective of the question is to find the infinitesimal work done (dW) by the gas when a piston…

Q: A certain gas expands from 350 mL to 800 mL very, very slowly at 45 °C. If there is 2.25 mol of gas…

A: The problem is based upon the expansion of a gas at a constant temperature. Here the given gas…

Q: A CANDU nuclear reactor produces steam at 350 deg C to drive a steam-electric turbine.  the…

A:

Q: If 5.90 moles of a monoatomic ideal gas at a temperature of 280 K are expanded isothermally from a…

A: Given value--- No. of mole = 5.90 . temperature = 280 K . process = isothermal . volume V1 = 1.17…

Q: Confirm that the units nRT of are those of energy for each value of R : (a) 8.31 J/mol.K, (b) 1.99…

A: units of nRT

Q: A Carnot heat pump draws heat from the outside to keep your house at temperature Th by providing…

A: Efficiency = (Qh-Qc) / W where Qh is the heat provided to the house, Qc is the heat pulled from the…

Q: a²T Q дх2 + ƏT Ət You know that T is temperature (K) and x is the x-coordinate, which is measured in…

A:

Q: 3m' of air at a pressure of I bar and 25 "C is compressed isentropically to Sbar. It is then…

A:

Q: How much heat energy does it take to boil 2.35 kg of water at 100oC completely to steam at 100oC ?…

A: As temperature of water is100° C, only latent heat of vaporization is required to convert the water…

Q: A system gains 2730 J of heat at a constant pressure of 1.49 x 105 Pa, and its internal energy…

A:

Q: A gas is compressed inside a clinder. An average force of 45 Newtons acts to move the pistion 7.4 m.…

A:

Q: When a system is taken from state i to state f along path iaf in the figure, Q = 50.2 cal and W =…

A: Given,          When the system is take from i to f state along iaf,        Q = 50.2 cal,        W =…

Q: How much heat do you need to remove from 2 g of steam at 100oC to convert it to water at…

A:

Q: A large electrical power station generates 1000 MW of electricity with an efficiency of 35.0%. (a)…

A: Part (a) Given: The power of electrical energy in one day is P=1000 MW. The efficiency of station…

Q: Answer the problem. For helium, R=2.0769 and Cp=5.1926 KJ/kg-K. Three kg of helium operates cycle…

A: 3kg of helium is used     R = 2.07  ,  Cp = 5.192 KJ/kg k      P₁ = 100 kPa,   T₁ = 300k…

Q: A gas undergoes adiabatic expansion satisfying cquation VT coustant. What is the value of specific…

A: In the given question , We have to determine the value of specific heat(γ).

Q: A tank of volume 0-2 m contains helium gas at a temperature of 300 K and pressure 1 x 10 N/ m?. Find…

A:

Q: A copper block is removed from 310ºC oven and immediately dropped into 3.75 L of water at 20ºC.in an…

A: Given - Volume of water ,  V = 3.75 L Initial temperature of water , Ti = 20°C Final temperature of…

Q: An 8 kq block moving, horizontally a rough froor with aninitial velocits of 7mis depresses a…

A: Potential energy of spring equals the half of kinetic energy. 12kx2=1212mv2x=mv22k=8 kg7 m/s2212…

Q: gas enclosed in a chamber absorbs 949.70 J of heat and during the same time does 353.61 J of work on…

A: Heat absorbed = 949.70 J  Hence, heat added to system q = - 949.70 J Work done by system W = 353.61…

Q: A storage building with well-insulated walls and containing 800 m³ of air at 285 K is heated at…

A: The density of the air = 1.225 kg/m^3The volume of the gas = 800 m^3The mass of the gas =…

Q: A nuclear power plant operates at 66 % of its maximum theoretical (Carnot) efficiency between…

A:

Q: Constenta The inside of an ideal retrigerator is at a temoerature T. whia the heating oois on the…

A: Given the refrigerator acts as a Carnot engine, for a Carnot engine, the efficiency is given by, Net…

Q: 1.50 moles of an ideal monatomic gas are initally at a tempeture of 317 K. If the gas gains 2550 J…

A: solution as

Q: What amount of gasoline (ρρρρ= 680 kg/m3) is needed to fill a 412 cm in diameter spherical tank that…

A:

Q: calculate the thermal conductivity for He at 25 C and 1 atm given the following information :at…

A: Temperature = 25 Degrees Celsius pressure = 1 atm  velocity of helium = 1360 m mean free path = 7.2…

Q: An enclosed chamber contains a gas that is cooled while stirred by a wheel. The work applied on the…

A: Thermodynamics.

Q: A chamber with a piston contains 1.15 kg of air at 23.0°C and 1.45 x 105 Pa. Energy is transferred…

A:

Q: 5. 10 moles of ideal gas initially at 10 atm and 250 K is expanded isother- ally and reversibly to a…

A: In isothermal process temperature remains constant. It follows Boyle's law.

Q: A work of 522 KNm is done on a system while heat energy of 110 KNm is being transferred from it.…

A: According to guidelines we need to solve only first question kindly repost other questions in the…

Q: When a system is taken from state i to state f along path iaf in the figure, Q = 51.4 cal and W =…

A: The question contains 5 sub-parts. As per our policy, we are supposed to answer the first three.…

Q: How much heat transfer (in J) occurs from a system if its internal energy decreased by 290 J while…

A: The internal decreased by 290 J. The work done is 43 J.

Q: An electric kettle was marked 500 Watt, 230 volt and was found to bring one kg of water at 15 degree…

A:

Q: Compute the heat transfer through the air condition if the outside temperature is outside…

A: Given:-            Outside temperature T∞ = 5° C              Inside temperature Ti = 20° C…

Q: The increase in internal energy is . for one mole of water under a pressure of 1013 N/ m2 and a…

A:

Q: Evalute the heat conduction in the bar cross Section with the following conditions, Ti =U (0,t), T₂…

A: Given data:   Bar length: l = 5m Temperature at one end:T₁ = 20°C Temperature at the other end:T₂ =…