Which of the following happens when a material undergoesa phase change?(a) The temperature changes.(b) The chemical composition changes.(c) Heat flows into or out of the material.(d) The molecules break apart into atoms.

Q: A glass window pane is exactly 18 cm by 24 cm at 10°C. By how much has its area increased when it…

A: Given value--- A glass window pane is exactly 18 cm by 24 cm at 10°C. the coefficient of thermal…

Q: How much heat is required to first melt 0.500 kg of 0°C ice and then raise its temperature to…

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Q: Ice cubes having a temperature of -15.0°C and mass 0.075 kgm are dropped in a glass of water at…

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Q: A single rod of length 54.0 cm is made from a 22.0-cm rod of steel and a 32.0-cm rod of aluminum.…

A: steel rod length is 22 cm aluminum rod length is 32 cm coefficient of thermal expansion of steel is…

Q: 1a) A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. When sleeping,…

A: 1 pound of body weight burns 0.45 Cal/h. Therefore a person with body weight 151 lb(151 pound) burns…

Q: A substance udergoes a phase change of Sublimation. During this process Heat ............... choose…

A: Sublimation is a process in which heat is required to change the phase of a substance. During this…

Q: A solid body is heated. What will happen to its (a) mass, (b) volume, (c) density?

A: When we heat a body, volume of the body increases. Which it terms decrease the density of the body..…

Q: 4. A rigid tank with a volume of 2 m' contains 8.244 kg of saturated liquid-vapor mixture of water…

A: Given Volume (V)           = 2 m3 Mass (m)              = 8.244 kg Temperature T1 = 75°

Q: At what temperature is the value on the Celsius scale 3 times that on the Fahrenheit scale?

A: Given : Value on Celsius scale is three times that on Fahrenheit scale.

Q: Rocky spends all the afternoon hours watching sports on cable TV. In the process, he does 1,179 J of…

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Q: It is possible to approximate the outside temperature based on how fast crickets are chirping.…

A: The points will be:

Q: A steel bar (448 J / (kg ° C)) at 280 ° C of 1 lbm is immersed in a tank of water at 100 ° C until…

A: Let L denotes the enthalpy of vaporization of water, m of water to be vaporized, M denotes the steel…

Q: The temperature of a gas sample in a rigid container is raised. Why does the pressure the gas exerts…

A: We know that the ideal gas equation is given as  PV = nRT  We know that We have given that the…

Q: 4. Compare a hot cup of water to a cold swimming pool. In which objects are the molecules moving…

A: As we know that the root mean square velocity is given by :…

Q: How many degrees are between the melting point of ice and boiling point of water on the Celsius…

A: To find : temperature difference between the melting point of ice and boiling point of water

Q: The temperature of 1L of an ideal gas is multiplied by 2 and the pressure by 3. The new volume of…

A: The ideal gas law is given by,PV = nRTWhere:P = PressureV = Volumen = Number of molesR = Universal…

Q: For a rigid diatomic molecule, universal gas constant R = nCp where 'Cp' is the molar specific heat…

A: To find- n=number in equation of gas constant=? Given- Molecule is a diatomic Universal gas…

Q: Figure illustrates a prism-shaped object with 80.0 cm high, 60.0 cm deep, and 160.0 cm long. The…

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Q: What heat is required to cause water of 250 g to be boiled. The initial  temperature of water is…

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Q: 1) A glass windowpane in a home is 0.62 cm thick and has dimensions of 1.5 m \times 2.3 m. On a…

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Q: What is the rate of energy loss through a 4.5 m x 1.0 m rectangular glass windowpane that is 0.00400…

A: The given values are, A=4.5 m×1.0 m∆x=0.00400 mTi=18° CTo=2.0° Ck=0.75 W/m·°C

Q: When a material changes from a liquid to a gas, O the molecules expand. O the molecules repel each…

A: during the transition from liquid to gas the energy of molecules increases

Q: A slab of stone of area 0.36 m² and thickness 0.1 is exposed on the lower surface to steam at 100°C.…

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Q: With respect to orderly and disorderly states, what do natural systems tend to do? Can a disorderly…

A: When the cup is in the waiter's hand, it had some order in it, the whole cup, and the tea in it and…

Q: The heat of combustion of gasoline is approximately 47 kJ /g . If a gasoline engine operated between…

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Q: A car, initially traveling at a high speed, crashes into a wall. After the crash, the car comes to…

A: car crashed into the wall

Q: Cold water is typically served at a temperature of 10°C. If the temperature of solid phase water (in…

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Q: 7) A85Kg student catches the flue and his body temperature increases from 37°C to 39°C. How much…

A: Suppose a student having a mass,(m) in kilogram catches flue due to which its body temperature…

Q: A typical diving cylinder has 600 L of gas compressed into a 3-L volume. Which of the following…

A: We have been given that a typical diving cylinder which has a volume of 600L has been compressed to…

Q: What is me Fahrenheit temperature of a person with at 39.0°C fever?

A: We know that-T0F=95×T0C+32    ..... equation 01.

Q: On a trip, you notice that a 4.64-kg bag of ice lasts an average of one day in your the average…

A: GivenMass of ice bag, m=4.64 kg

Q: 8. (a) If a rod of brass 0.35m 15 to 85°c while its ends are maintained rigid, long is heated from…

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Q: A 0.50 cm thick piece of copper has an area of 4.0 cm2. One side of the copper is at a temperature…

A: Given that, A 0.50 cm thick piece of copper has an area of 4.0 cm2. One side of the copper is at a…

Q: 5. When perspiration on the human body absorbs heat, some of the perspiration turns into water…

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Q: The temperature of a copper bar rises by 10.0°C when it absorbs 2.03 kJ of energy by heat. The mass…

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Q: Solid A is placed in contact with solid B. Heat will flow spontaneously from A to B when O a. A is…

A: Temperature is defined as the degree of hotness or coldness of a body. Heat is the amount of energy…

Q: (9%) Problem 9: Suppose a human body's core internal temperature is 37.0°C, the skin temperature is…

A: Given data The internal temperature is given as Ti =37°C. The skin temperature is given as Ts…