On a brisk walk, a person burns about 331 Cal/h. If the brisk walk were done at 3.5 mi/h, how far would a person have to walk to burn off 1 lb of body fat? (A pound of body fat stores an amount of chemical energy equivalent to 3,500 Cal.)  =______mi

Q: You are boiling water in a pot on the stove for your herbal tea. There is 0.15kg of water in the pot…

A: Mass of water (M) = 0.15kg Initial state : Liquid at 100°C temperature Final state :  Solid at…

Q: A crate of fruit with a mass of 31.0 kg and a specific heat capacity of 3600j/(kgxk) slides 8.40m…

A:

Q: 0.5 kg of superheated steam (2bar and 200°C) is compressed isothermally until it becomes saturated…

A: The enthalpy change in an isothermal process is zero.  Hence, ∆h=0

Q: The specific heat of water is 4186 J/kg c°. How much does the internal energy of 200 g of water…

A:

Q: A 4-ton air conditioner removes 5.06×107 J (48,000 British thermal units) from a cold environment in…

A: Given: air conditioner removes 5.06×107 J Or 48000 British thermal units Time 1 hr or 3600 sec (a)…

Q: Water of volume 2 L in a container is heated with a coil of 1 kW at 27°C. The lid of the container…

A: We are aware that a 1 kW coil is heating 2 L of water to a temperature of 27°C in a container.The…

Q: A container holds 4.0 x 1022 molecules of an ideal gas at 0 °C. A piston compresses the gas, doing…

A:

Q: A coal- burning steam locomotive heats steam to 180°C and exhausts it at 100°C. During 1 s of its…

A: Refer Table “Heat engine efficiencies. Typical input and exhaust temperatures, ideal (best possible)…

Q: Question 15 See the below figure. Calculate the work done performed by each heat engine and rank…

A:

Q: In a process for the production of raw materials for the elaboration of circuits, a gas at 1227 ° C,…

A: For an ideal machine ,we can apply Carnot conditions.

Q: A gas is compressed inside a cylinder. An average force of 68 N acts to move the piston 1.5 m.…

A:

Q: A 46-kg woman eats a 522 Calorie (522 kcal) jelly doughnut for breakfast. (a) How many joules of…

A:

Q: Air conditioners sold in the United States are given a seasonal energy-efficiency ratio (SEER)…

A: Temperature inside = 24∘ C = 24 +273 K =297 K Temperature outside =35∘C=35+273K =308 K To find SEER…

Q: An ideal gas with an initial temperature of 300 K is isobarically cooled at a pressure of 25 Pa. Its…

A:

Q: A 0.5 m container of an ideal gas at atmospheric pressure is at a temperature of 20 °C and contains…

A:

Q: When someone has a fever, his or her body temperature might increase by as much as 2°C. Suppose this…

A: The given values are, ΔT=2° Cm=48 kg

Q: A solar hot-water-heating system consists of a hot-water tank and a solar panel. The tank is well…

A:

Q: A small electric immersion heater is used to heat 87 g of water for a cup of instant coffee. The…

A: Given data:  Mass (m) = 87 g = 0.087 kg Power (P) = 170 watts Initial temperature (Ti) = 18°C Final…

Q: A dietician develops a new diet, in which people drink copious amounts of ice water. The theory is…

A:

Q: A mixture of gas expands from 0.02 cubic meters to 0.08 cubic meters at a constant pressure of 7.78…

A:

Q: A small electric immersion heater is used to heat 84 g of water for a cup of instant coffee. The…

A: Given : mass, m = 84 g = 84 × 10-3 Kg  Power, P = 81 W  T1= 21 ℃ = 294 K  T2=100 ℃ = 373 K  Specific…

Q: One gram of water (1 cm³) becomes 1671 cm3 of steam when boiled at a constant pressure of 1 atm…

A:

Q: Two hundred thirty grams of water at 0°C is brought into contact with a heat reservoir at 92°C.…

A: given m=230g=0.230kg, C=4186J(kg⁰C) 1. Since reservoir has infinite capacity at same temperature.…

Q: A steam turbine takes in steam at a temperature of 400 oC and releases steam to the condenser at a…

A: Given values -  Temperature of hot reservoir=TH=400oC=673 KTemperature of cold…

Q: 5.0 moles of an ideal gas that occupies a volume of 30 L at a temperature of 300C undergoes an…

A: Given that           The number of the mole of the gas is (n) = 5                  V1 = 30L at…

Q: You are boiling water in a pot on the stove for your tea. Being the brilliant scientist you are, you…

A: Given. The 0.1 kg of water in a pot is boiling at 100 degrees celsius. In the process of boiling the…

Q: Calculate the amount of heat required to transform 26 g of ice at -19°C into steam at 100°C. Express…

A:

Q: What is the change in internal energy of a system which does 4.50×105J of work while 3.00×106 J of…

A: The change in internal energy(ΔU) of a system.given,workdone(W)=4.50×105 J Heat goes…

Q: The initial temperature of 13 moles of an ideal gas is 358 K. 18000 J of heat are added to the gas…

A: It is given that on adding heat energy, gas gets expanded. It means that volume of gas gets…

Q: Suppose that in our lab on calorimetry, 80 g of aluminum at -20° Celcius was added to 120 g of water…

A:

Q: A 42 client with a body mass of 74 kg is interested in jogging on the treadmill as their primary…

A: Mass of the client=74 Kg Amount of calorie needs to be burnt in each jogging session,  E=350…

Q: A container maintains a constant pressure of 86300 Pa and volume of 116 liters while 49960 J of heat…

A:

Q: Calculate the amount of heat required to transform 20 g of ice at -9°C into steam at 100°C. Express…

A:

Q: In an air conditioner, 12.65 MJ of heat transfer occurs from a cold environment in 1.00 h. (a) What…

A: The heat transfer from a cold environment,   The latent heat of fusion of ice,

Q: A 60.0-kg runner expends 342 W of power while running a marathon. Assuming 14.0% of the energy is…

A: in this question we determine volume of bodily fluid lost per hour.

Q: Consider the change in the internal energy of a system. -What is the change in the internal energy,…

A: Given data: Work done by the system (W) = 4.725×105 J Heat added (Qin) = 3.2×106 J Heat rejected…

Q: To raise the temperature of a certain mass of gas by 50°C at a constant pressure, 160 calories of…

A: Given data- For Cp ∆T=500 Q =160 calories For Cv ∆T=1000 Q=240 calories

Q: A gas is compressed inside a cylinder. An average force of 67 N acts to move the piston 4.4 m.…

A:

Q: A container holds 4g of neon at a pressure of 5 atm and a temperature of 15 degrees Celsius. How…

A:

Q: A 0.422 g food sample is used to raise the temperature of 14.656 g of water by 45.2 celsius. How…

A: Given data *The given mass of the food is m = 0.422g *The mass of water is M = 14.656 g = 0.014656…