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01.12.2020 •
Physics
A piston-cylinder device contains 3.2 kg of R-134a at 400 kPa and 50°C. Now R-134a is allowed to expand at constant pressure until its temperature drops to 10°C. The work done during this expansion process is
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Ответ:
Mechanical weathering breaks rocks into smaller pieces without changing their composition. ... Chemical weathering breaks down rocks by forming new minerals that are stable at the Earth's surface. Water, carbon dioxide, and oxygen are important agents of chemical weathering.
Explanation: