7. Calculate the heat needed at 0°C to make each of the following changes of state. Indicate whether heat was absorbed or released. a. calories to freeze 35 g of water. b. calories to freeze 250 g of water. ç, kilocalories to melt 140 g of ice.

7. Calculate the heat needed at 0°C to make each of the following changes of state. Indicate whether heat was absorbed or released. a. calories to freeze 35 g of water. b. calories to freeze 250 g of water. ç, kilocalories to melt 140 g of ice.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

### Heat Calculation at 0°C for State Changes

Calculate the heat needed at 0°C to make each of the following changes of state. Indicate whether heat was absorbed or released.

**a. calories to freeze 35 g of water.**
**b. calories to freeze 250 g of water.**
**c. kilocalories to melt 140 g of ice.**

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