# If the ring is initially at 99 degrees Celsius, what mass of water at 25 degrees Celsius is needed to lower the ring’s temperature to 38 degrees Celsius?

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A jeweler working with a heated 47g gold ring must lower the ring’s temperature to make it safe to handle. If the ring is initially at 99 degrees Celsius, what mass of water at 25 degrees Celsius is needed to lower the ring’s temperature to 38 degrees Celsius? (ANSWER: 0.0068kg)

A jeweler working with a heated 47g gold ring must lower the ring’s temperature to make it safe to handle. If the ring is initially at 99 degrees Celsius, what mass of water at 25 degrees Celsius is needed to lower the ring’s temperature to 38 degrees Celsius? (ANSWER: 0.0068kg)

##### 1 Answer

It's 0.0068 kg of water or 6.8 g of water.

#### Explanation:

You'll want to set up a

Jokes aside, the change in temperature will be

By inserting this in your

You can then substitute the