Q: have water vapor at -10°C
A: Given:- Water vapor at -10°C Find:- Is it possible to have water vapor at -10°C?
Q: A pound of body fat stores an amount of chemical energy equivalent to 3,500 Cal. When sleeping, the…
A: A pound of body fat is equivalent to 3500 calorie. time required =total energy/ rate of energy loss
Q: What amount of thermal energy/heat would be lost by 24kg of carbon dioxide condensing? Use the table…
A: Given : m = 24 kg
Q: Which would lose energy by radiation at the fastest rate? Group of answer choices Molten lead at…
A: The specific heat capacity of Lead is 128 J/Kg and the temperature difference is 700 -30 = 670 Deg…
Q: A carbon dioxide laser used in surgery emits infrared radiation with a wavelength of 10.6 µm. In…
A:
Q: How many hydrogen atoms are present in 722.6 g of sucrose (C12H22011)? (Molar mass of carbon =…
A: Avogadro’s law, a statement that under the same conditions of temperature and pressure, equal…
Q: 18. A sample of gas has a volume of 1.5 xl0m³ at a pressure of 3.0 x 10$ Pa. Its new volume when…
A:
Q: rive the equation H= U + PV
A: Enthalpy, H : It is a property of a thermodynamic system, which is defined as the sum of internal…
Q: Thermal equilibrium is there if a. None of these b. Pressure remains constant O c. Temperature…
A: when two systems which are in physical contact with other but there is no net flow of thermal energy…
Q: Calculate the total amount of energy (in kJ) required to boil 0.2 kg of Mercury at its boiling point…
A: Mass of mercury =0.2kg latent heat of vaporisation=2.96×105Jkg-1 boiling point of mercury =+357oC
Q: What is the difference between saturated vapor and superheated vapor?
A: Saturation temperature is nothing but the phase change temperature. During phase change temperature…
Q: How many Joules of energy are required to make .002 kg of iron completely melt? Hv = 209,000 J/kg.…
A: mass of iron (m) = 0.002 kg Hv = 209000 JkgHf = 6340000 Jkg
Q: A 20 kW drilling machine is used to drill a bore in a small aluminium block of mass 8.0 kg. How much…
A: Given that, 50% of power is used up in heating the machine itself or lost to the surroundings. Then…
Q: The highest atmospheric temperature ever recorded on earth was 57.8 C°. How will you express this…
A:
Q: The melting point of titanium is 1668°C which is equivalent to .. Kelvin. 1394.85 K 1941.15 K 1668 K…
A:
Q: Super Invar, an alloy of iron and nickel, is a strong material with a very low coefficient of…
A: Given : α = 0.2 × 10-6(°C)-1 Lo = 2 m ∆T = 5°C
Q: Wet air is less dense than dry air, but wet hydrogen is more dense than dry hydrogen. explain why…
A:
Q: A 2500 ft3 capacity tank stores Ethane initially at 150°F and 30 atmospheres (1 atmosphere =…
A: If the mass triples, the volume will also be tripled as the volume is directly proportional to the…
Q: A parcel of air with a volume of 9.1 x 104 km3 that contains 5.7 x 107 kg of water vapor rises to an…
A:
Q: How much heat (in kJ) must be added to completely transform the ice (at the melting point) to liquid…
A: Given Mass of ice = 2.0 kg Initial temperature of ice = -8 °C Final temperature of water = 0 °C We…
Q: Some solar energy devices used in homes circulate air over a bed of rocks that absorb thermal energy…
A: Use principle of calorimetry and put the values to calculate energy stored. Given:mass of…
Q: The density of dry air at NTP is 0.001293g/cm3. At what temperature will a litre of dry weigh 1g at…
A: according to the ideal gas equation,
Q: Which contains the most moles: 10.0 gg of hydrogen gas, 100 gg of carbon, or 500 gg of lead?
A: Let M be the mass of the element, Mmol be the molar mass of element.Write the expression for the…
Q: To sterilize a 49-g glass baby bottle, we must raise its temperature from 22.0°C to 95.0°C. - How…
A: Given data: Mass (m) = 49 g = 0.049 kg Initial temperature (T0) = 22.0°C Final temperature (T) =…
Q: A temperature increase of 20 C° is the same as a temperature increase of a) 32 F°. b) 293 K. c) 273…
A:
Q: The equation for the power emitted by the human body is P = (5.67 × 10^-8)AT^4. If the area of the…
A: power emitted P =5.67x10-8 AT4 P emitted = σεA T4 Power radiated = σεA (T4 - T04) Power radiated…
Q: How much energy in joules is required to melt 371g of ice? Latent heat fusion of ice: Lf =…
A: Given : Mass of ice (m) = 371 g = 0.371 kg Latent heat of fusion (Lf) = 3.33 × 105 J/kg
Q: At what temperature will 0.654 moles of neon gas occupy 12.30 liters at 1.95 atmospheres? Use the…
A:
Q: The enthalpy of evaporation of water is 40.67 kJ>mol. Sunlight striking Earth’s surface supplies…
A: Enthalpy of evaporation, ∆H = 40.67 × 103 J/molHeat from Sun, Qsun = 168 W/m2 = 168 J/s.m2Area, A =…
Q: A pound of body fat stores an amount of chemical energy equivalent to 3,500 Cal. When sleeping, the…
A:
Q: Liquid nitrogen is obtained froM liquefied air and is used to prepare frozen goods and in…
A: Given : density of liquid nitrogen at boiling point (d) = 0.808 gcm3Required : density of liquid…
Q: Why do you study propeties of gases?
A: Studies about the properties of gases allow us to understand about the behavior of the matter. We…
Q: When a chalk piece is immersed in water, bubbles are emitted, why?
A: A piece of chalk has extremely narrow capillaries. As it is immersed in water, water rises due to…
Q: On a walk a person burn 345 cal/h. at this rate how many hours of brisk walking would it take to…
A:
Q: What is 7.86 x 10¯² Kl in dl? Solve this using dimensional analysis.
A: The metric system conversion of length in the unit of kilo liter , liter and deciliters is as shown…
Q: Which property of water allows water striders to walk across ponds? O a Specific Heat Capacity O b…
A: Water striders are capable to walk on top of water due to a combination of different factors water…
Q: How many tons of ice can a 20-ton ice plant produce in 24 hours at 5 degree F from raw water at 80…
A: The mass of the ice that can be produced in 24 hours is 12.672 ton.
Q: A 1.7 cm ^ 3 gas tank has propane gas inside it at a pressure of 136 kPa when the temperature is…
A: From ideal gas equation, PV = nRT PV / T = nR = constant for same amount of gas It is given that…
Q: Most car oil is 5 W – 30. What does that mean?
A: Numbers preceding W describe the viscosity of the oil at low temperatures. The lower this number,…
Q: At 6 a.m. the temperature was -8°F. By noon the temperature was 15°F. The temperature had risen how…
A: Answer 23
Q: Calculate the total amount of energy (in kJ) required to heat 0.2 kg of Mercury from its melting…
A: The amount of heat required is, Q=mCT2-T1 the specific heat capacity is 140 J/kgK or J/kgoC.
Q: What temperature gradient must exist in an aluminum rod for it to transmit 8.0 cal per second per…
A:
Q: Timber is an anisotropic material as it?
A: solution as
Q: Why is the energy is required to melt a solid?
A: Particles in solid are connected to each other by strong bonds and cannot move freely as in liquid…
Can carbon dioxide be liquefied at room temperature (20ºC)? If so, how? If not, why not?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Why do we study the properties and behavior of gases? Cite at least three (3) reasons.1. The escape velocity of any object from Earth is 11.2 km/s. (a) Express this speed in m/s and km/h. Speed, m/s: Speed, km/h: (b) At what temperature would oxygen molecules (molecular mass is equal to 32 g/mol) have an average velocity, Vrms, equal to Earth's escape velocity 11.2 km/s? Temperature: ✔K(a) Using data from the previous problem, find the mass of nitrogen, oxygen, and argon in 1 mol of dry air. The molar mass of N2 is 28.0 g/mol, that of O2 is 32.0 g/mol, and that of argon is 39.9 g/mol. (b) Dry air is mixed with pentane 5 H12, molar mass 72.2 g/mol), an important constituent of gasoline, in an air-fuel ratio of 15:1 by mass (roughly typical for car engines). Find the partial pressure of pentane in this mixture at an overall pressure of 1.00 atm.
- Calculate the osmotic pressure of a 5% urea solution at a temperature of 273 K. Note that the molecular weight of urea (/60g) is the osmotic pressure of a solution obtained by mixing 100ml of a 4.5% solution of urea and 100ml of a 3.42% solution of sugar solution at a temperature of 300K. Suppose that 1 = 0A glass container has a total wall area (including the lid) of 1.75 m and a wall thickness of 1.5 cm. It's filled with 1000 g of ice at 0 C. How many seconds will it take to completely melt all the ice? (Latent heat of fusion is 80 cal/g and Thermal conductivity of glass is 0.8 WIim K) O 120 s O 14, 400 s O 2, 800 s O 200 sQ1 a) Convert a density of 1.0g/cm^3 to kg/m^3. b) At constant pressure 6m³ at an ideal gas at 75°C is cooled until it's volume is halved. What is the new temperature of the gas? c) One end of an iron poker is placed in a fire where the temperature is 502°C, and the other end is kept at a temperature of 26°C. The poker is 1.2m long and has a radius of 5.0×10^³m. What is the amount of heat conductor from one end of the poker to the other is 5.0 s? (Kiron= 79Wm^-¹K^-¹, ignore the heat lost along the length of the poker).
- Your car’s radiator is made of steel and is filled with coolant. You fill the radiator to the very top with coolant, then drive off without remembering to replace the cap. As the coolant and steel radiator heats up, will the level of coolant drop or rise and overflow? why? what is a radiator is and what purpose does it serves in a car? Here is a good start: https://youtu.be/y5p31F_dVJUAtmospheric pressure on Earth at its surface is 101 KPa (101 kilopascals or 101,000 N/m2). Which of these statements is true. When we reduce the pressure in the container while keeping the temperature constant, the number of atoms per m3 must stay constant. At 1 atmosphere, the number of atoms/m3 in air at room temperature is about 109, one billion atoms. If we pump out the gas in a closed container leaving only 1 billionth of the original gas there will be fewer than 100 atoms per m3 in the container. If we pump out the gas in a closed container leaving only 1 billionth of the original gas there will still be more than 1010 (10 billion) atoms per cm3 in the container.If the density of water at the top of a lake is 1.0020g/cm3, what is the density of the water at the bottom of the lake, 130 m deep? Assume that the water temperature is just above 0C throughout the lake.
- A 2400 meter bridge in Somewhere, OH uses steel expansion joints. One morning in Somewhere, the temperature starts at 3 oC and reaches a high of 15.6 oC. How much does the bridge expand in meters? coefficient of linear expansion of steel = 0.000012 / oC10. A 30-g ice cube is dropped into a container of liquid nitrogen. How much nitrogen evaporates if it is at its boiling point of 77 K and has a latent of vaporization of 200 kJ/kg? (Cice = 2100 J/kg⋅CO, 0 oC = 273 K) 5.8 x 10^-3kg 4.8 x 10^-2kg 5.8 x 10^-2kg 6.2 x 10^-2kgWhat is the underlying theoretical explanation for the anomalous behavior of water, such as its high boiling point and density maximum at 4°C?