Sweating is a cooling process because... a.) the open pores allow heat out of the body b.) the evaporating fluid removes heat from the skin c.) water has a high heat capacity
Q: Will dumping heat into a system necessarily raise the temperature of the system? Explain.
A: Heat:- Heat is thermal energy transferred from a hotter system to a cooler system that are in…
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: 8) A piece of ice at 0°C starts at rest at the top of a ramp and slides down ramp the ice's kinetic…
A: Required : The correct option
Q: It takes much longer to cook food in the hills than in the plains, because: A. in the hills the…
A: Answer: The air pressure is less in great height compared to the air's pressure at the low height.…
Q: Figure shows a person is warming his hands over the fire. |(a) Explain how the heat transfers from…
A: (a) There are three modes of heat transfer namely conduction, convection and radiation. However,…
Q: i) A 514g granite pan of specific heat 774 J/kg.°C kept on a stove and 0.280 L water of specific…
A: A graphite pan containing water is cooled down from 86 to 25 degC
Q: Your body is like an "oven" set to 98 degrees F or 37 degrees C. Questions 6-8 are related to this…
A: Our body is at 370 C which is at a higher temperature than the atmospheric temperature.
Q: engine does 12 kJ of work and 7.50 kJ of heat transfer occurs to the environment in a cyclical pro
A: Givenwork. W=12 kJHeat transfer to environment, Q1=7.5 kJ
Q: How do heat transfer and internal energy differ? In particular, which can be stored as such in a…
A: The most basic difference between heat transfer Q and internal energy U: It can be easily understood…
Q: above you should notice that for the same amount of heat added, the temperature difference is…
A: A system's temperature is a reflection of how quickly its molecules are moving. Oil molecules adhere…
Q: ) When two objects are in ,then heat flows out from hot to coid. During this process the internal…
A: i) not thermal equilibrium; decreases increases
Q: Determine the amount of heat needed to completely transform 1 g of water at 15°C to steam at 115°C.…
A: In order to transform water into steam, the temperature of water will first be needed to increase…
Q: A 25,000-kg subway train initially traveling at 16.0 m/s slows to a stop in a station and then stays…
A: Given Data: The mass of train is: M=25000 kg The initial velocity of the train is: u=16.0 m/s The…
Q: i) When two objects are in then heat flows out from hot to cold. During this process the internal…
A: (i) When two objects are in contact then heat flows from hot to cold. During this process the…
Q: It is important for the body to be able to cool itself even during moderate exercise. Suppose a 70kg…
A: Given data M=70 kgt=30 minE=1000 J/sec
Q: Water initially a saturated liquid at 110°C is contained within a piston–cylinder assembly. The…
A: The specific internal energy of the saturated liquid at T=1100C is defined as : uf=460 kJ/kgug=2517…
Q: Substance A has a higher specific heat than substance B. With all other factors equal, which…
A:
Q: 3) a) Determine the energy required to boil away 0.5 kg of water initially at room temperature. b)…
A:
Q: In an industrial process, a gas phase refrigerant reduces its internal energy by 70 kJ by means of a…
A: Given data dU=-70 kJWin=-20 kJWout=+100 kJ
Q: 35. when we are hot, our body automatically increases the rate of perspiration. helps our body to…
A: Heat of vaporisation: The amount of heat that must be absorbed in order for a specific amount of…
Q: 11) During a particular time interval an air conditioner requires 1.2 kJ of mechanical energy in…
A: To answer: How good is an air conditioner at its job?
Q: The pressure and volume of an ideal gas change from A to B to C as shown in the following figure.…
A: (i) In the given figure, the volume is constant along the path AB. So, the change in the volume of…
Q: Which one of the following processes does not occur during the convective transfer of heat within a…
A: Convection is mode of heat transfer which basically takes place due to density difference . Gravity…
Q: Which of the following is not true of thermal equilibrium? O If two objects are both in thermal…
A: Concept: Thermal equilibrium occurs when the engine temperature is adequate to the atmospheric…
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: 10) On a sunny day, Anish Kapoor has painted a 2.0m² windowpane over with Vantablack™, which is one…
A: Temperature of the windowpane. areaA=2.0 m2PowerP=1900 WTemperature of the sunlightTs=123 oC=396 K
Q: 3) A thermodynamic system undergoes a process where its internal energy increases by 200 J. During…
A:
Q: 38) In an adiabatic compression, 200 J of work is done on a gas. What is the change in internal…
A: We have a compression process which is adiabatic in nature where a work of W=-200 J is done on the…
Q: PA b 4P, a Pa d a V, 2Va V a
A:
Q: On a cold day, a heat pump absorbs heat from the outside air at -10°C and transfers it into a home…
A: Given value--- cold temperatures = - 10 degree C. Hot temperatures = 30 degree C. We have to…
Q: boiling water
A:
Q: H₂O has a much higher latent heat of vaporization than latent heat of fusion. Therefore, Ice at 0° C…
A:
Q: much heat is required to convert 14.5 gg of ice at -8.50 ∘C∘C to steam at 100.0∘C∘C ? Express your…
A: Mass of ice m =14.5 g = 14.5 × 10-3 kg Specific heat of ice = 2093 J/kg 0 C Latent heat of ice =…
Q: 36. In a heat engine, what material can we "theoretically" use as the working substance? (a) Only an…
A: The heat engine uses pressure volume variance of the substance. The substance takes heat from source…
Q: 4) A ground source heat pump heats a building by extracting heat from the ground and pumping it into…
A: Part a) Basic Details The heat pump is a device which extracts heat from the cold reservoir from the…
- a.) the open pores allow heat out of the body
- b.) the evaporating fluid removes heat from the skin
- c.) water has a high heat capacity
Step by step
Solved in 2 steps