When a warm object and a cold object are placed in thermal contact, they will co

Question

When a warm object and a cold object are placed in thermal contact, they will come to equilibrium at a temperature:

A)midway between their intial temperatures

B)someplace between their intial temperature

C)closer to the higher of the two intial temperature

D) equal to one half of the sum of thier intial tmeperature

E)either higher than the hot one or colder than the low temperature.

%) if a larger block of ice is brought inside a closed room at normal classroom temperature, the best description for why the melting of the ice will reduce the room's temperature is:

A)No! room temperature wont change

B)cold lfows from the ice to the room

C)heat flows from the room to the ice

D)both B and C

E) none

Celsius and Fahrenheit temperatures are numerically equal at -40 degrees. WHat is the temperature at which a Fahrenheit thermometer readi is twice that of a celsius thermometer?

A)this is not possible

B)-12.3 C = -24.6 F

C)160 C = 320F

D)288C = 576 F

E none

Explanation / Answer

1)

When a warm object and a cold object are placed in thermal contact, they will come to equilibrium at a temperature:

B)someplace between their intial temperature

2) if a larger block of ice is brought inside a closed room at normal classroom temperature, the best description for why the melting of the ice will reduce the room's temperature is:

D)both B and C

Celsius and Fahrenheit temperatures are numerically equal at -40 degrees. WHat is the temperature at which a Fahrenheit thermometer readi is twice that of a celsius thermometer?

C)160 C = 320F

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