3 bodies of equal mass specific heat capacities are at temperature 100k, and two at 300k. they are acted by a heat engine. what is the maximum temperature that one of the bodies can attain?(not mentioned which one?)

 

ans. 400k.

3 bodies of equal mass specific heat capacities are at temperature 100k, and two at 300k. they are acted by a heat engine. what is the maximum temperature that one of the bodies can attain?(not mentioned which one?)

 

ans. 400k.

 

Can you be a little more clear .What do you mean "are acted by a heat engine"??

probably we added a heat engine in the system. & yes no heat from outside is supplied or rejected.

So you can use one item at 300K as your source and the one at 100K as the reservoir for rejected heat. Use the engine to heat up the other block that's at 300K.

i did it. thanks anyway.