When 1 g of water evaporates, the organism gives off 0.58 kcal of heat. At a comfortable temperature, evaporation of water is about 35 ml/h. What part of heat is given by a person weighing 70 kg, performing light work in a comfortable temperature? Calculate

Q: CAI = 0.22 kcal/kg°C A 0.60 kg length of aluminum wire is warmed by 22.3°C by an electric current.…

A: Heat is a form of energy  Which is given by  q° mc∆T  Where m= mass  C = specific heat  T=…

Q: 1. In what two ways can an object possess energy? How do these two ways differ from one another?…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: In metric terms, a typical automobile averages 5.72 km/L of gasoline burned. Gasoline has a heat of…

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Q: 54. Perform each conversion. (a) 345 Cal to kilowatt-hours (b) 23 J to calories (c) 5.7 × 10° J to…

A: Hi, since you have posted questions with multiple subparts we will answer first three subparts for…

Q: In the illustration, N is color-coded as blue and O is color-coded as red. ⠀- What kind of change is…

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Q: A geochemist in the field takes a small sample of the crystals of mineral compound X from a rock…

A: Given thatvolume of distilled water = 800 mL = 0.8 Lmass of the crystals after drying = 0.032 Kg =…

Q: Why is coal considered stored or potential energy?

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Q: How many times more kinetic energy does the dump truck have than the car?

A: Given: Mass of sub compact car =1.6×103 Kg Mass of dump truck =1.70×104 Kg Speed of both truck and…

Q: Use the References to access important values if needed for this question. Thermometer When a solid…

A: Number of moles of NH4Br can be calculated as follows,

Q: A 1555 kg car is traveling down the road at 95.4 km/h. While traveling at this rate of speed, what…

A: Given  Mass of Car( m )  = 1555 Kg             Speed( v)  =  95.4 km/h  Kinetic Energy of Vehicle =…

Q: Assuming the density of the wine to be 1.0 g/mL, what is the caloric content due to the alcohol…

A: Given: The heat of combustion of ethanol=-1367 kJ/mol The wine contains, by mass 12.1% ethanol The…

Q: In metric terms, a typical automobile averages 5.76 km/L of gasoline burned. Gasoline has a heat of…

A:

Q: Two aqueous solutions, Solution A and Solution B, are mixed together in a beaker, and the following…

A: When two or more substances combine to form new substances,a chemical reaction is said to occur.…

Q: What happens when you add 33 gr of NaOH to 65 ml of water?  what energy is released?

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Q: When a 4.25 g sample of solid ammonium nitrate dissolves in 60.0 g of water in a coffee- cup…

A: 1) Since the temperature of the water in coffee-cup calorimeter is decreasing from 22 to 16.9 oC…

Q: A piece of unknown metal weighs 348 g. When the metal piece absorbs 6.64 kJ of heat, its temperature…

A: Given: Mass, m = 348 g Heat, q = 6.64 kJ Tf = 43.6oC Ti = 22.4oC

Q: Calssify the following process as endothermic or exothermic. A match burns  Ice melts  Molten metal…

A: When heat is released from the system then reaction is called exothermic and when heat is absorbed…

Q: 3. a. What is the specific heat of a 41.5 g piece of glass, if it takes 17.8 kJ of heat to raise its…

A: (3a) Specific heat of a Substance can be calculated by using Following formula - Q = C M ∆T Here, Q…

Q: If the specific heat of gold is 0.13 J/(g°C), how much heat is needed to raise the temperature of a…

A: Here we are asked to calculate the amount of heat needed to raise thetemperature of a   20 gram…

Q: A coffee cup calorimeter containing 200 g of water at 24°C had a 200 g sample of metal heated to…

A: When one hot and one cold element is mixed together then average temperature is reached .

Q: A certain physical process requires 36.00 kilojoules (kJ) of heat.  Convert this quantity to…

A: Given : Energy in KJ = 36.00 KJ

Q: How many kilojoules of heat will raise the temperature of 1.50 kg of water from 22.00°C to 25.00°C?

A:

Q: kJ per hour ?

A:

Q: A car whose mass is 5.30 x 10° lb is traveling at a speed of 53 miles per hour. What is the kinetic…

A: Given that : Mass of the car = 5.30 x 103 lbs Speed of the car = 53 miles/hr

Q: 137 kJ to Calories.

A: Given  Energy =137 KJ

Q: How much work is done by an Olympic bicyclist who accelerates from 5.0 m/s to 10.0 m/s? The mass of…

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Q: A 68.0 kg person uses 214 kJ of energy to walk 1.00 km. This energy comes from “burning" glucose…

A:

Q: 4. If the Law of Conservation of Energy states that energy is neither be created nor destroyed, but…

A: According to law of conservation of energy, energy can neither be created nor destroyed, but can…

Q: 900 J of heat are added to a system and 200 J of work are done on the system. What is ∆E?

A: For this problem We have to find the change in internal energy for the given condition.

Q: The energy needed to keep a 75 - watt lightbulb burning for 1.0 hr is 270kJ. Calculate the energy…

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Q: Is the solution of ammonium chloride in water an exothermic or endothermic process.

A: When ammonium chloride is dissolved in water, it produces an endothermic reaction, i.e. energy is…

Q: What are the advantages of electricity as a type of energy that make it worth generating despite the…

A: Electricity has electrical energy in it.

Q: a person uses 530 kcal on a walk around campus. Calculate the energy used for the walk in joules.

A: For the conversion to kilocalories to the joles we use the relation as  1kcal = 4,184 J So, by using…

Q: The specific energy and density of gasoline is -47.3 MJ/kg and 716 kg/m3, respectively. What is its…

A: Specific energy: It is the energy required for one unit of mass. Energy density: The amount of…

Q: If a television requires 150 kJ/h to run, how many hours can the television run on the energy…

A: 1 gallon of gasoline has energy equal to 33.7 kWh 1kWh = 3600000 J/s 33.7 kWh = 33.7 X 3600000 J/s =…

Q: How much heat, in joules and calories, is needed to heat up 253 mL of water from 13.3 °C to 85.2 °C?…

A: Given : Volume of water = 253 mL Density of water = 1.00 g/mL Initial temperature of water = 13.3 °C…

Q: Suppose that a person eats a diet of 2383 Calories per day. Convert this energy into kilowatt-hours.

A: In generally power is given by kWh so the calories of energy is cavorted as kWh by below,

Q: What is the heat joules required to raise the temperature of 25 grams of water from 0 degree C to…

A: We have to calculate the heat in joules and calories require to raise the temperature of water.…

Q: Consider the gasoline in your car's gas tank. What happens to the energy stored in the gasoline when…

A: Gasoline contains stored energy in the form of potential energy. When one drives a vehicle, one…

Q: A student is asked to identify an unknown piece of metal. The metal has a mass of 12.34 g. It is…

A: Given data,Mass of metal=12.34gTemperature of metal (Tm)=99.98oCVolume of water=103.25mLDensity of…

Q: When you turn on a flashlight that uses batteries, what is the energy transformations taking place?

A: It runs on batteries. The battery has chemical energy. When the flashlight is turned on, the…

Q: A water heater contains 60 gal of water. How many kilowatt-hours of energy are necessary to heat the…

A: Conversion of the units of volume from gallon to mL: The mass of water can be calculated as given…

Q: 8.0-kg rock is dropped from a height of 3.0 m. At what height is the rock's kinetic energy twice its…

A: As we know potential energy =mgh

Q: Specific heat is defined as ___ - The amount of energy needed to raise the temperature of 1 g of a…

A: The solution is as follows :

Q: When 31.2 g of aluminum is warmed from 21.5°C to 30.9°C, how many calories of heat does it require?

A: Specific heat capacity is the amount of heat in Joules is required by the substance to raise its…

Q: A geochemist in the field takes a small sample of the crystals of mineral compound X from a rock…

A:

Q: As the caterpillar climbs, its potential energy is increasing, what source of energy has been used…

A: As the Caterpillar climbs, the potential energy is increasing. The energy source that has been used…