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#### Raerin

##### Member

- Oct 7, 2013

- 46

**1. What mass of iron would be needed to have it increase by 6 degrees with 300J of heat.**

I am not sure what is meant by the increase of 6 degrees. How do you solve it without knowing the final or initial temperatures?

**2. If 10g of gold at 200 degrees Celsius is dropped into 100 grams of water at 20 degrees Celsius, what is the final temperature of the gold and the water?**

How are you supposed to solve this without knowing the value of q?

**3. If 100g of water at 25 degrees Celsius is mixed with 50g if water at 4 degrees Celsius, what is the final temperature?**

I am confused about the same thing as in the second question.