1)Two objects with different sizes, masses and temperature are placed in thermal

ID: 1308736 • Letter: 1

Question

1)Two objects with different sizes, masses and temperature are placed in thermal contact. The net flow of energy is:

A) from the larger to smaller size object.

B) from the larger to smaller mass object.

C) zero, becuase they are inthermal contact.

D) from the larger to smaller temperature object.

E) none of the above.

2) A metal sphere is hollow inside. If it temperature is increased, then the hollowed out region inside will become

smaller as the sphere expands.

A) true B) false C) none of the above.

3) A process in which the pressure is kept constant is called.

A) isochoric B) adiabatic C) isothermal D) isbaric E) none of the above.

1) : D

Because rate of energy transfer is directly proportional to diff in temp

2) : B

because when there is expansion every two points of the sphere gets larger in distance

3) : D

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