The equation for the power emitted by the human body is . If the area of the human body is 3.5 m2, what is the power radiated by the human body when the temperature is 25 degrees celsius?

Q: The thermal energy of 0.900 mol of a substance is increased by 0.900 J.

A:

Q: The British Thermal Unit (BTU) is defined by the heat needed to raise the temperature of one pound…

A: Determine the heat in kilocalories.

Q: On a day when the temperature reaches 50°F, what is the temperature in degrees Celsius and in…

A:

Q: A scuba diver inhales 110 mL of compressed air at a pressure of 3.7 atm. What is the pressure of air…

A: In the given question given that initial value of pressure and volume and also given the value of…

Q: The SI unit for temperature is

A: Dear student There are 7 fundamental physical quantities. And Temperature is ome of them. Every…

Q: A given substance has a mass of 5.1 kg and specific heat of 649 J/kg-°C. How much energy is required…

A: The heat needed to change the temperature of an object is given by Q = mc∆T, where m = the mass of…

Q: A woman finds the front windshield of her car covered with ice at -14.3 °C. The ice has a thickness…

A: Given, temperature of the ice in front windshield, T = -14.3 °C thickness of the ice, t = 4.86×10-4…

Q: How much heat is transferred in 9 minutes through a glass window of size 1.4 m by 1.3 m, if its…

A: Solution:

Q: A college student produces about 139 kcal of heat per hour on the average. What is the rate of…

A: The rate of heat produced by the student is 139 kcal/h 1 kcal=4184 J=4.184 kJ

Q: If a room has a temperature of 23.9∘C, what is the temperature difference between the boiling point…

A: Let T be the room temperature and T0 be the boiling point of water.Write the values of the…

Q: A gas is heated so that it expands from a volume of 2 L to a volume of 2.5 L. If the initial…

A:

Q: A bottle containing 6 kg of water at a temperature of 15°C is placed in a refrigerator where the…

A:

Q: ries of energy to heat a small piece of aluminum from 100°F to 120°F. What is the mass of the piece…

A: GivenQ=2.7×103 calT1=100°FT2=120°F

Q: A hot 1 kg chunk of copper is allowed to cool from 700°C to 100°C. If the specific heat of copper is…

A: Given data The mass of the chunk of copper is: m = 1 kg = 1000 g The initial temperature of the…

Q: What is the change in internal energy of the system if 2000J of heat leaves the system and 2500J of…

A: Heat lost by the system, QL = 2000 J Work done by the system, W = 2500 J Hence, heat gained by the…

Q: A helium balloon is at 105 kPa. As the balloon rises the pressure drops to 95 kPa and its new volume…

A: Given values:- Initial pressure,(P1)=105 KPa ----(1) Final pressure,(P2)=95 KPa -----(2) Final…

Q: A 60-kg man used to have an apple every day after dinner without losing or gaining any weight. He…

A: Consider the 200 ml of ice cream contain 220 Cal and for apple contain 70 Cal from the table of…

Q: If you have 500 g of water at 25 degrees celcius and wish to heat it to 74 degrees Celsius, how much…

A:

Q: At 20∘C, a brass cube has an edge length of 25 cm. What is the increase in cube's surface area when…

A:

Q: How much natural gas do you need to burn to heat twenty gallons of water?

A: The energy released by the burning of natural gas will be equal to the energy absorbed by the water.…

Q: A circular sheet with a diameter of 8.00 cm is cut from an aluminum sheet at room temperature. If…

A: Note :- We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: A city of population 6000 has an average total consumption per person per day of 100 gallons. What…

A: Consumption per person per day = 100 gallons Consumption of 6000 person per day = 600,000 gallons…

Q: The amount of heat needed to raise the temperature of 1 gram of water by 1°C is

A: the amount of heat required at a pressure of 1 standard atmosphere to raise the temperature of 1…

Q: A 5-kilogram concrete block falls to the ground from a height of 10 meters. If all of its original…

A: The given values are, m=5 kgh=10 mCp=Cp,concrete=880 J/kg·K

Q: If a certain quantity of gas has a volume of 30 cm at a pressure of 1×105 pa what is the volume when…

A: Given: The volume of the gas is 30 cm3. The initial pressure of the gas is 1×105 Pa. The final…

Q: A man consumes 3000 kcal of food in one day, converting most of it to maintain body temperature. If…

A:

Q: If the mass a piece of aluminum is 2kg and the change in heat is 3K, how much heat does it generate?…

A: Given data,                mass of Aluminum, M = 2 kg                change in temperature, ∆T = 3 K…

Q: With the temperature held constant, the piston of a cylinder containing a gas is pulled out so that…

A: Given, Initial volume = 0.2 cubic meter final volume = 0.6 cubic meter initital pressure = 93 kPa

Q: The piston of a cylinder containing a gas is pulled out so that the volume increases from 0.1 m³ to…

A: Given data: Initial volume is, V1=0.1 m3. Final volume is, V2=0.3 m3. Initial pressure is, P1=80,000…

Q: A balloon with a volume of 2.0 L is filled with a gas at 3 atmospheres. If the pressure is reduced…

A: "Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The temperature of a cup of coffee t min after it is poured is given by the following equation where…

A:

Q: If 7,446J of energy was added to 4g of water that starts at 9°C, what will the final temperature be?…

A: Write the expression for the energy added. Here, m represents the mass, c represents the specific…

Q: A sample of gas has a volume of 12 L and a pressure of 200 kPa. If the pressure of gas is increased…

A:

Q: The input and output relationship of a temperature measurement system is given in the table. Find…

A: For a linear systems the change in one quantity directly affects the other parameters. Say, Y = m X…

Q: How many joules of electrical energy are converted into heat and light when a 50 W lamp is lit for 2…

A:

Q: A volume of helium is at a pressure of 135 kPa. The new volume is 40 L after the pressure drops to…

A: Solution: According to Boyle Law, P1V1 = P2V2 , where P1 and P2 are initial and final pressures and…

Q: A man consumes 3000 kcal of food in one day, converting most of it to thermal energy to maintain…

A: Heat of evaporation can be expressed as

Q: What is the mass, in kg, of a 10 cm x 10 cm x 10 cm cube of pure iron?

A:

Q: The metric unit for measuring heat is the calorie. true or false

A: In the metric system heat is measured in units of calorie. calorie is defined as amount of heat…

Q: If the degrees Fahrenheit scale is twice the degrees Celsius scale, what is the temperature value in…

A: Given data: TF = 2TC Required: Temperature valve in °F and °C

Q: How much heat (in J) is needed to raise the temperature

A: Given that:- Mass=9kg T1=380 C, T2=8300 C /\T=T2-T1=7920 C C= Specific heat capacity of silver=230…

Q: How much energy would have to be added to 519grams of water to heat it from 17.0°C to 84.0°C?…

A:

Q: If we use 67 W of power to heat 148 g of water, how long will it take to raise the temperature of…

A: Given: mass=148g =0.148 Kg            Power=67W              Ti= 15 °C              Tf=25 °C…

Q: A quantity of gas in a piston cylinder has a volume of 0.472 m3. If the gas is initially at room…

A: Initial volume,  Initial temperature,  Final volume,

Q: When 350 kcal of heat is added to 15kg of a substance, its temperature increases 20 degrees celsius.…

A:

Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.