Posted by **Raven** on Wednesday, May 19, 2010 at 5:51pm.

What mass of copper solid, initially at 25oC,should be added to 100 g of steam, initially at100oC, if we want exactly half of the steam to

condense?

The specific heat of copper

is 0.385 J g-1 oC-1.

For water, the heat of

vaporization is 2257 J g−1.

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