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In the cooling process of polystyrene from 123C to 250 under atmospheric pressure. The product is hard plastic. Calculate the heat (q) and the change

In the cooling process of polystyrene from 123C to 250 under atmospheric pressure. The product is hard plastic. Calculate the heat (q) and the change in entropy (As). related to cooling when Cp of PS = 135 mol K 3900 = 360 + 0.90T + (molk?) 10.5 +

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