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Chemistry, 21.06.2019 17:00
Initially, the balloon had 3.0 liters of gas at a pressure of 400 kpa and was at a temperature of 294 k. if the balloon is cooled to 277 k and its volume decreased to 1 l, what will the new pressure in the balloon be?
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Chemistry, 21.06.2019 17:10
The concept of empiricism states that all rationally accepted knowledge is determined from experience. francis bacon was one of the first scientists to promote this theory. what was itβs impact on society?
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Chemistry, 21.06.2019 18:00
Construct the hypothetical phase diagram for metals a and b between room temperature (20c) and 700c, given the following information: * the melting temperature of metal a is 480c. β’ the maximum solubility of b in a is 4 wt% b, which occurs at 420c. β’ the solubility of b in a at room temperature is 0 wt% b. β’ one eutectic occurs at 420c and 18 wt% bβ82 wt% a. β’ a second eutectic occurs at 475c and 42 wt% bβ58 wt% a. β’ the intermetallic compound ab exists at a composition of 30 wt% bβ70 wt% a, and melts congruently at 525c.β’ the melting temperature of metal b is 600c. β’ the maximum solubility of a in b is 13 wt% a, which occurs at 475c. β’ the solubility of a in b at room temperature is 3 wt% a.
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