A nail made of iron and a bowl of water have the same temperature because they are on the same table for long time. You transfer heat to them, so the internal energy of each doubles, then... the water will have the higher temperature. the iron will have the higher temperature. both will have the same temperature.

Q: (a) Rowing your shell to work one day, you give off 4.8 * 105J of heat and do 6.2 * 105J of work.…

A: Using the first law of thermodynamics, we can write, ∆U=q+w where ∆U is the change in internal…

Q: If a system has 4×102 kcal of work done to it and releases 5×102 kJ of heat into its surroundings,…

A:

Q: How much heat transfer occurs from a system, if its internal energy decreased by 50 J while it was…

A: given that,Internal energy decreased:∆U=- 50 Jwork done:∆W=120 J

Q: Question #: 23 If a person who normally requires an average of 12,000 kJ (~ 3000 Cal) of food energy…

A: If a person who normally requires an average of 12,000 kJ (3000 kcal) of food energy per day…

Q: Suppose a woman does 600 J of work and -9400 J of heat transfer occurs into the environment in the…

A: Work, W = 600 JHeat, Q = -9400 JEfficiency, Eff = ?

Q: How much internal energy in Joule is generated when a (1.67x10^1)-g lead bullet, traveling at…

A: Mass of bullet "m " = 1.67×10^¹ g  Velocity of bullet "v"= 4.9×10^² m/ s .

Q: A book falls from a table. Suppose some of the thermal energy within the book is spontaneously…

A: Suppose some of the thermal energy within the book is spontaneously converted into kinetic energy…

Q: A system does 1.95 × 108 J of work while 7.5 × 108 J of heat is transferred from the system to the…

A: Given data:  Work done by the system (W) = 1.95×108 J Heat transferred from the system to the…

Q: A heated rock is placed in a container of water that is cooler than room temperature. The objects…

A: After sometime the rock, water and room would became in thermal equilibrium. By virtue of which the…

Q: The tea in a cup of tea has a temperature of 50 degree celsius and a certain internal energy. If all…

A: mass = p*v ∆Q = ms∆T         =ρVS∆T                                        S =   specific heat…

Q: An arrow in a bow in a bow has 270 (J) of potential energy. Assuming 100 (J) of energy were…

A:

Q: A 65kg box is being pulled across a floor that has friction with a rope that has a tension of 50 N…

A: When multiple forces applies on a object, then splitting them is best way to solve problem. In this…

Q: Can you warm a kitchen by leaving the door of a hot oven open? Explain.

A: Yes. It is possible to warm the kitchen by leaving the door of a hot oven open.

Q: Is the efficiency of a heat engine more in hilly areas than in the plains? Why?

A: Efficiency of heat engines depend on source and sink temperatures. η=1-TsinkTSourceFrom the above…

Q: Air in a balloon does 37 J of work while absorbing 88 J of heat. What is its change in internal…

A:

Q: Compute the change in internal energy of a 1-kmol sample of dry air if its tempera- re is raised by…

A: Given: The moles of gas in the sample of dry air are 1 kmol. The temperature of dry air is raised by…

Q: The air inside a bicycle tire pump has 11.6 joules of work done on it as 4 joules of heat is…

A: Given :     work done , W = 11.6 J    Heat conducted away from the tire, Q = 4 J…

Q: It is important for the body to be able to cool itself even during moderate exercise. Suppose a 70kg…

A:

Q: A system does 1.80×10* Jof work while 7.50× 10° J of heat transfer occurs to the environment. What…

A: The following data are given: Work done, ∆W=+1.8×108J (positive sign appears because the system is…

Q: during isothermal process of an ideal gas whose internal energy only depends on its temperature does…

A:

Q: The air inside a bicycle tire pump has 26.2 joules of heat conducted away from while 88.5 joules of…

A: Given data: Heat rejected by the tire, ∆Q= -26.2 J(conducted away) Work done on tire, ∆W= -88.5 J…

Human Metabolism

Being described as the most complicated machine ever encountered by humans, the human body and the cell metabolism is nothing less than a wonder. Metabolism is the set of life-sustaining chemical reactions within organisms.