How is the thermal resistance due to fouling in a heat exchanger accounted for? How do the fluid velocity and temperature affect fouling?

Q: If you touch the metal sides inside of an oven with a bare hand, you’re in trouble. But hold your…

A: Metals have more free electrons to carry energy, in order, to conduct electricity. That is why…

Q: Is heat transfer to or from the fluid desirable as it flows through a nozzle? How will heat transfer…

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Q: How does the average kinetic energy of each gas in a mixture compare?

A: The kinetic energy of gas is the random movement of gas particle in a vessel. It associate with the…

Q: hat happens to the balloon when it is inflated by blowing air into it?

A: Blowing up a balloon requires forcing additional air particles from our lungs into the balloon.…

Q: A diffuser is an adiabatic device that decreases the kinetic energy of the fluid by slowing it down.…

A: Given:  A diffuser in an adiabatic device

Q: A cup of iced coffee is made from three types of liquids cofmee, mik and ace water at temperatures…

A: Before answering the above question, first, let us understand some concepts of thermodynamics that…

Q: does hot water freeze faster than cold water? which one is independent and dependent variables.

A: does hot water freeze faster than cold water?  which one is independent and dependent variables.

Q: In an isolated system, what happens to the pressure when the temperature is increased?

A: Here we consider volume beign constant for the process.

Q: How does the ideal gas model explain the rise in pressure of a gas as its temperature is raised…

A: Gay-Lussac’s law states that “the pressure of a given mass of gas varies directly with the absolute…

Q: Water boils at 120 degree C in a pressure cooker. Explain the reason.

A: We know that, the boiling point of water varies directly with pressure at  constant volume.

Q: Integrated ConceptsTo get an idea of the small effect that temperature has on Archimedes’ principle,…

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Q: How do specific heats of solids vary with temperature?

A: The ability of a substance to absorb heat is known as Specific heat

Q: If you hold one end of a piece of metal against a piece of ice, the end in your hand soon becomes…

A: When two objects with temperature gradient are brought in contact with each other, heat flows from…

Q: Write the equation of the Isobaric process?

A: The process taking place at the constant pressure is called an isobaric process. It is given as,…

Q: Beakers and graduated cylinders should be made of a material having a low coefficient of expansion.…

A: Coefficient of expansion: Coefficient of expansion is defined as the ratio of change in length or…

Q: What effect does condensation on a glass of ice water have on the rate at which the ice melts? Will…

A: Condensation: The conversion of a matter from gaseous state to liquid phase is called condensation…

Q: Choose the CORRECT statement about heat, Q flows through a metal rod. * I. increases proportionally…

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Q: Which will normally warm faster - a black pot of cold water or a silvered pot of cold water?…

A: The black pot of cold water will normally warm faster than the silvered pot of cold water.

Q: Consider two finned surfaces that are identical except that the fins on the first surface are formed…

A: Given: Consider two finned surfaces that are identicalexcept that the fins on the first surface are…

Q: When water heats up, then cools and sinks, like in the Water Cycle, this is an example of O…

A: When water heats up then the molecules of water gets heat energy and changes its phase from liquid…

Q: Select all of the mechanisms of heat transfer that contribute to the fact that heat is extracted…

A: The mechanism that contributes more to heat transfer rate from a body, when the body is submerged in…

Q: The volume of gas sample is increased. Why does the pressure which is exerted by gas decreases?

A: Boyle’s law states that “the pressure of a given mass of an ideal gas is inversely proportional to…

Q: How is the volume of water affected when it boils at 100 degree C?

A: The volume of liquid water decreases as the water boils at 100°C.

Q: Name the physical quantity which is measured in calorie. How is it related to SI unit of that…

A: The physical quantity that measures in calorie is heat energy.

Q: If you supply heat to a system consist of water and ice at 0 degrees centigrade. Which element will…

A: Heat is the flow of energy from a hot body to a cold body.

Q: A pipe is insulated to reduce the heat loss from it. However, measurements indicate that the rate of…

A: Yes, the measurements can be right.

Q: What are the heat transfer mechanisms involved during heat transfer in a liquid-to-liquid heat…

A: The involved mechanism during liquid to liquid heat exchange: Due to convection and conduction mode,…

Q: What is thermodynamic identity ?

A: To determine: What is meant by thermodynamic identity?

Q: Why is it important that glass mirrors used in astronomical observatories be composed of glass with…

A: A telescope uses glasses for high precision measurements and observations, and a slight variation in…

Q: How are the speeds of molecules of air affected when the air is compressed by the action of a tire…

A: when the air is compressed by the action of a tire pump, due to high pressure the average speed of…

Q: What is Conduction in physics ?

A: Conduction is the transfer of thermal energy or electric charge through a material through direct…

Q: As a car mechanic you hold one end of a metal screwdriver against a piece of ice and then notice…

A: Given that when we hold one end of a metal screwdriver against a piece of ice and then notice that…

Q: Would you expect the temperature of a liquid to change as it is throttled? Explain.

A: The temperature of the liquid changes as it is throttled in the foolowing way:

Q: If you hold one end of piece of metal against a piece of ice, the end in your hand becomes cold.…

A: Heat is transferred from a point at a higher temperature to a point at lower temperature. The hand…

Q: How will you find the change in internal of a system when it melts?

A: When the ice melts the change in internal energy of the system is calculated using first law of…

Q: Which one of the following processes of heat transfer requires the presence o fluid?

A: Processes of heat transfer requires the presence fluid

Q: Porous canvas bags filled with water are used by travelers in hot weather. When the bags are slung…

A:

Q: Write the term which matches the following defintion. Heating via fluid flow

A: Fluids transfer heat energy by a process called convection. Convection is when the hot part of a…