What is the sign of the entropy change for the heat


Problem- You probably know that when two objects at different temperatures are brought into contact, heat always travels from the hotter object to the colder object; never the reverse.

Imagine that you have two aluminum blocks, one with a mass 264 g at a temperature of 28.6 oC, and another with a mass 346 g at a temperature of 127 oC. The two blocks are brought into contact with each other in an insulated container.

Specific heat of aluminum = 0.900 JK-1g-1

What is the sign of the entropy change for the heat transfer (enter positive or negative) that takes place?

Sign of entropy change =_________

What is the final temperature of the two aluminum blocks?

Final temperature =___________ oC

What is the entropy change for the heat transfer described in this question?

Entropy change =________JK-1

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Chemistry: What is the sign of the entropy change for the heat
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