The metal molybdenum becomes superconducting at temperatures below 0.90 K. Calculate the temperature at which molybdenum becomes superconducting in degrees Celsius. Round your answer to 2 decimal places .

Q: A rectangular prism with width of 5.2cm and a length of 7.8cm is made of metal alloy. After you…

A: Weight = Density × volume × g

Q: The active element of a certain laser in made of a glass rod 28 cm long and 2.3 cm in diameter.…

A: Length , L = 28 cm = 0.28 m Diameter , d = 2.3 cm = 0.023 m Average coefficient of linear expansion…

Q: The product of atoms in a primitive, base centered ,body centered and face centered unit cells are…

A: Number of atoms in primitive unit cell = 8 at the corner Number of atoms in base centred unit cell =…

Q: . Which among the plots shown represents the IV curve of an ohmic material? (a) (b) (c) (d) I L

A: Any electrical conducting material that obeys Ohm's law, where the current through the device is…

Q: If 112 g of silicon (Si) react completely with 64 g of oxygen (O) to form silica (SiO2), what is the…

A: Ratio of the amount of silicon to oxygen

Q: The vapor pressure of ethanol at 25°C is 0.07726 atm. Calculate the vapor pressure in kPa.Round…

A: The relationship between the atmosphere of pressure and Pascal is given as, 1 atm=101325 Pa…

Q: A typical atom has a diameter of 1A°. Approximately how many atoms of this diameter would fit on a…

A: Given The diameter of the typical atom is d = 1A°= 1 × 10-8 cm. The length of line is l = 1 cm.…

Q: Which length better represents the size of molecules made of few (less than 10) atoms? Group of…

A: The maximum radius of an atom is about 105 times the radius of the nucleus which is R=10-15 m .Thus…

Q: Which of the following represents the characteristic curve of a NON-ohmic material? Choices:  A…

A:

Q: A soda can is pressurized in order to preserve the CO2 inside the liquid. If the surface of the can…

A: The pressure in the soda can is calculated as, Here, F and A represent the force and the area,…

Q: he surface tension, in N/m, of a small drop of water 0.30 mm in diameter which is in contact with…

A: GivenDiameter of water droplet, d=0.3 mm=0.3×10-3 mPressure inside the droplet, P=589 Pa

Q: In the figure below, the actual mass of a piece of an alloy is 85 g (mass in air) and an apparent…

A: mass of an alloy in air (m) = 85 g apparent mass of alloy in water = 73 g

Q: What does the effective conductivity of an enclosure represent? How is the ratio of the effective…

A:

Q: A unit cell of a metal has a volume of 50 cubic angstrom.  If each atom has a volume of 17 cubic…

A:

Q: A substance has a hexagonal closed-pack crystal structure, if its density is 6.51 grams per cubic…

A:

Q: In the figure below, the actual mass of a piece of an alloy is 85 g (mass in air) and an apparent…

A: Density of water dw = 103 kg/m3 Let density is dm M = 85×10-3 kg = Vdm  Volumr  (V) = 85×10-3/dm

Q: A cube 6.8 cm on each side is made of a metal alloy. After you drill a cylindrical hole 2.87 cm in…

A:

Q: The following measurements were taken of stacks of 50 coffee filters. Find the average mass of ONE…

A:

Q: One mole of atoms consists of 6.02 × 1023 individual atoms. If one mole of unicorn atoms were spread…

A: The expression for surface area of Earth is,

Q: Zirconium has an HCP crystal structure and density of 6.51 g/cm³, what is the volume of its unit…

A: Given, Zirconim has an HCP crystal structure and density of ρ = 6.51 gcm3

Q: The conductivity of germanium at 20°C is 2/ Ohm m. What is its conductivity at 40°C? Eg=0.72eV

A: The ratio of electrical conductivity of germanium at two different temperatures is

Q: Densities of some common substances g/cm3 Aluminum 2.70 Сopper 8.96 Iron 7.87 Lead 11.4 Water 1.00…

A:

Q: Calculate the volume of an FCC unit cell in terms of the atomic radius, R.

A: As we know that in FCC unit cell 8 atoms is situated at the 8 corners of FCC unit cell and 6 atoms…

Q: Twenty (20.0) mL of argon gas is stored at STP. If the temperature and pressure are both doubled,…

A: According to the ideal gas equation, PVT=constant where,  P = Pressure of the gas V = Volume of the…

Q: A cube 9.75 cm on each side is made of a metal alloy. After you drill a cylindrical hole 3.21 cm in…

A:

Q: If a substance is changing temperature from below its melting point to above its melting point, how…

A: If a substance is changing temperature from below its melting point to above its melting point, how…

Q: Which diagram(s) I II III best characterize(s) a pure substance that is compound?

A: In this we have to select which is compound .

Q: With the temperature held constant, the piston of a cylinder containing a gas is pulled out so that…

A: Given, Initial volume = 0.2 cubic meter final volume = 0.6 cubic meter initital pressure = 93 kPa

Q: In a standard gas grill propane tank, there is approximately 4,579 mL of propane (C3H8). At a…

A: Given values: Initial volume of propane, V1=4579 mL Initial temperature, T1=55°C Final temperature,…

Q: Determine the temperature difference (in C°) between the two metals in a thermocouple if the voltage…

A: We have a output voltage generated by a thermocouple V=19 V between metals having temperatures sat…

Q: A cube 5.73 cm on each side is made of a metal alloy. After you drill a cylindrical hole 3.11 cm in…

A: Calculate the volume of the cube before creating the hole. Vi=a3=5.73 cm3=188.132 cm3 Here, Vi is…

Q: How many molecules are in 0.044 kg of carbon dioxide, CO2? (atomic masses: C = 12 u; O = 16 u)

A: ...

Q: Enter your answer in the provided box. Copper can be drawn into thịn wires. How many meters of…

A: Density is defined as mass per unit volume, i.e. ρ=massvolume Covellite is a sulfide mineral that is…

Q: In Figure W, the value for Vo is: 300 k2 25 k2 V=3V V. FIGURE W

A:

Q: Why is it valid to represent the structure of a crystalline solid by the structure of its unit cell?

A: Because in a crystalline solid these unit cell repeats itself to form the complete solid.

Q: Through questionable means, you have acquired 5.10 m³ of glycerin. In an attempt to sell it, you…

A: Given that Volume of the glycerin, V0=5.1 m3 Initial temperature, Ti=68.80 F =20.440C Final…

Q: Consider an alloy of two metals whose thermal conductivities are k1 and k2. Will the thermal…

A:

Q: A quantity of gas occupied a volume of 14 L at 98.5kPa pressure and 24.5 °C temperature. What…

A: Let the number of moles of the gas is "n" and the given volume V = 14 L pressure P =98.5kPa…

Q: What is the % M/M if 8.0 g copper is added to enough zinc to produce 100 g of an alloy?

A: Percentage fraction of mass %M/M=MCuM×100%

Q: Three experimental values are obtained for the density of steel in g/cm3, which are: 7.8, 8.1 and…

A: Error in the values of density are - ∆d1=8 g/cm3-7.8 g/cm3=0.2 g/cm3∆d2=8.1 g/cm3-8 g/cm3=0.1…

Q: What is the density of water, in kg/m3, at 308.3 K?

A:

Q: Draw a Miller plane which was indexed as (110) in a face centred cubic structure and state how many…

A: The miller indices of the plane is given as (hkl)=(110) The intercepts of this plane on x, y and z…

Q: If we have 35.54L of O2 gas at STP, how many moles of this gas do we have?

A: At STP (standard temperature and pressure), 1 mol of any given gas occupies 22.4 L. Given is the…

Q: Which of the following materials are likely to exhibit more conductive properties than insulating…

A: Answer; Aluminium, silver and wet skin