Nitrous oxide (N2O) is used as an anesthetic (laughing gas) and in aerosol cans to produce whipped cream. It is also a potent greenhouse gas. The decomposition of N2O is first order. It decomposes slowly to N2 and O2:
2N2O \rightarrow 2N2 + O2
How many half-lives will it take for the concentration of the N2O to reach 2 % of its original concentration?
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100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)
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Nitrous oxide (N2O) is used as an anesthetic (laughing gas) and in aerosol cans to produce whipped c...
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