In this problem, we are beginning with ice and ending with ice. Thus, we don't have a phase change. The temperature changes from 0°C to -30°C. To determine the energy lost, we'll use the equation for the quantity of heat.
How much energy must be removed from a 200 g block of ice to cool it from 0°C to -30°C?
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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 Changes in Phase & Latent Heat concept. You can view video lessons to learn Changes in Phase & Latent Heat. Or if you need more Changes in Phase & Latent Heat practice, you can also practice Changes in Phase & Latent Heat practice problems.