The molecular weight of carbon dioxide (co2) is 44.00 a. m.u., and the molecular weight of propane gas (c3h8) is 44.10 a. m.u. thus co2 c3h8.

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An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )