have water vapor at -10°C

Q: Calculate the number of atoms in 39.4g gold. Molar mass of gold is 197 g/mole.

A: The formula for the number of moles is:

Q: 6. Calculate the heat transfer of the following| c. 4.7 kg of ethyl alcohol to vapor

A: mass of ethyl alcohol = 4.7 kg Latent heat of vapourisation of ethyl alcohol (Lv) = 879 KJkg

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: Why does decreasing the temperature of a liquid make it freeze?

A: As the temperature of a liquid decreases, the randomness in the motion gets decreased. Freezing…

Q: How much heat in kcal must be added to 0.43 kg of water at room temperature (20°C) to raise its…

A:

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: when a gas condenses it ____ heat and its temperature ______ A. gains heat, temperature decrease s…

A: Condensation is a phase change process in which the matter in the form of gas gets converted into…

Q: It is the point in temperature at which the liquid and gas phases coexist in equilibrium? Select the…

A: Since, liquid and gas phase exist in equilibrium.

Q: Some gun fanciers make their own bullets, which involves melting and casting the lead slugs. how…

A:

Q: What usually happens when vapor condenses into liquid? a. it absorbs heat b. it rejects heat c. its…

A: Solution: Step1 - Here we will understand the concept that will be used to solve the question. As we…

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: When a vapor condenses to a liquid, Select one: O A. its internal energy increases O B. its…

A: Answer: Condensation: In physics, the condensation is described as the process in which any…

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: Calculate the energy absorbed when 89g of water is boiled at 100.0°C. Latent heat of vaporization…

A: The boiling of the water is the process by which water turns into vapor when it is heated to its…

Q: A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. When sleeping, the…

A:

Q: During the winter freeze of last February 2021 damage occurred to a plant at temperature of 10!F…

A: We know, t°F can be converted to Kelvin(K) by following formula, t°F = {(t − 32) × 5/9 + 273.15} K

Q: Why will spraying fruit trees with trees with water before a frost help to protect the fruit from…

A:

Q: an unknown temperature scale freezing point of water is 0°X and boiling point of water is 1000°X.…

A:

Q: At what temperature does liquid water have the highest density? A) 100 c B) 4 c C) 0 c D) -7 c

A:

Q: 30. 1 g of ice at 0°C is mixed with 1 g of steam at 100°C. After thermal temperature of the mixture…

A:

Q: The average coefficient of volume expansion for carbon tetrachloride is 5.81 ✕ 10−4 (°C)−1. If a…

A:

Q: What should be the temperature of supply air of the all air reheat if the temperature requirement of…

A: Given : Choose correct option about temperature of supply air

Q: When the pressure in a container is 1200 pascals, the temperature is 400 K. Find the temperature…

A: Given : Pressure P1=1200 pascals Temperature T1=400 K Pressure P2=600 pascals Volume V=constant

Q: What is the reason for ice being less dense than water?

A:

Q: Water boils at 100 degree Celsius at sea level, however water boils at less than 100 degree celsius…

A:

Q: A sealed cubical container 18.0 cm on a side contains a gas with four times Avogadro’s number of…

A: Given data: Length of the side, L=18 cm=0.18 m Temperature, T=300C=30+273 K=303 K Number of moles,…

Q: If you boil water in a whistling kettle, the kettle whistle when the water reached  its boiling…

A: In this problem it is asking about why does kettle whistle when the water reached its boiling point.

Q: practice, a good insulator all of the above stops heat flow . speeds negative heat flow . slows heat…

A: To determine good insulator

Q: How much heat is involved when 100 g ice at 0 oC is heated to 100 oC? Specific heat of ice is 0.5…

A: Given Data: Mass of ice, m = 100g Specific heat of ice, cice = 0.5 cal/g oC   Solution: Let, Latent…

Q: At boiling point of liquids , its   A) Temperature increases B) Atmospheric pressure increases…

A: A boiling is a process in which molecules change their phase from liquid to vapor.

Q: How much heat must be removed from 800 g of water to cool it from 60 °c to 5 °c? a) 44 cal b) -44…

A:

Q: As you go from a gas to a liquid you go through what Phase change? O Melting O Freezing Condensation…

A: We first define each of the following terms :- i) Melting is the change of a solid into a liquid…

Q: The normal body temperature of a person is 98.6. Convert this temperature to a. degree Celsius b.…

A: Given  Normal body temperature is given as T=98.6°F   Formula to be used Relation between Fahrenheit…

Q: 1 . mol of xenon expands at constant pressure; the change of gas temperature is 1 K. Find received…

A: Heat given  Q = n Cp ΔT

Q: Heat flows from one body to another when they have O a. different heat contents. O b. different…

A:

Q: What is the energy needed to melt 0.86 kg of gold? (Use: Lf of gold 63 kJ/kg) Select one: a. 32760 J…

A: Given Data: The mass of gold is, m = 0.86 kg. The latent heat of fusion of gold is, L = 63 kJ/kg.…

Q: Why does the boiling temperature of water decrease when the water is reduced under pressure, such as…

A: A substance starts boiling when the vapor pressure of the substance overcomes the ambient pressure.

Q: How much heat is necessary in kcal to change 15-lb of ice at -30 degrees C to water at 60 degrees C.…

A: Given data- mass of ice m=15 lb 1 lb=0.454 kg so m=15 × 0.454 kg=6.81 kg Lf=80 Kcal/Kg Lv=540…

Q: What is quality? Does it have any meaning in the superheated vapor region?

A: The ratio of the mass of the vapor to the total mass of the mixture is known as quality. It is also…

Q: Find the temperature in Celsius: P = 5.20atm V = 28.54L n = 9.71mol Show your solutions

A:

Q: At which temperature could water contain the most dissolved gas at a pressure of 101.3 kPa?

A: For gaseous solutes, The solubility decreases with increase in temperature.

Q: Suppose it's winter and the machine is powered with methanol. Methanol has a density of 0.80 g/cm3.…

A: Given data, Density of Methanol, d = 0.80 g/cm3 = 0.80×1000 kg/m3 = 800 kg/ m3  Amount of heat…