Problem: A 13.0 g sample of granite initially at 82.0 oC is immersed into 26.0 g of water initially at 23.0 oC. What is the final temperature of both substances when they reach thermal equilibrium? (For water, Cp =4.18 J/g•oC and for granite, Cp =0.790 J/g•oC.)

🤓 Based on our data, we think this question is relevant for Professor Gardner's class at CSULB.

FREE Expert Solution

First, we have to know that the heat released by the granite is equal to the heat absorbed by water.


Q released is negative because of the direction of the heat.

Next, we can use the equation we use for calorimetry: 

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Problem Details

A 13.0 g sample of granite initially at 82.0 oC is immersed into 26.0 g of water initially at 23.0 oC. What is the final temperature of both substances when they reach thermal equilibrium? (For water, Cp =4.18 J/goC and for granite, Cp =0.790 J/goC.)

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Calorimetry concept. You can view video lessons to learn Calorimetry. Or if you need more Calorimetry practice, you can also practice Calorimetry practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Gardner's class at CSULB.