Question based on activation energy for the reaction
Question: The activation energy for the reaction described by:
C4H8 (g) -----> 2C2H4 (g) is 262 kJxmol-1
At 600.0 K the rate constant is 6.1 x 10-8 s-1. What is the value of the rate constant at 800.0 K.
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Clocks sell for €45, radios for €60, and toasters for €35. The company wishes to know the optimal product mix that will maximise profit. Formulate the problem as a LP problem.
Calculate the enthalpies of formation of these isomers. b. What is the difference in enthalpy between these isomers? Maleic acid is the cis-isomer of butenedioic acid, whereas fumaric acid is the transisomer.
Pure benzene freezes at 5.50 degrees celsius. When 10.06 g C10H8(naphthalene, MM = 128.16 g/mol) is added to 100.0 g C6H6(benzene) the mixture freezes at 1.48 degrees celsius. What is the freezing point depression constant for benzene?
Construct a separate diagram for each of the following possible ways of adding these vectors: R1 = A + B + C; R2 = B + C + A; R3 = C + B + A.
How many moles of gas are there in a gas-filled balloon, which has a volume of 67.0 L at a pressure of 742 mmHg and a temperature of 25.0°C?
Why was the method more appropriate for this type of data collection? If a convenience sample were obtained, consisting of only adolescents, how would the results of the study be affected?
Assuming ideal gas behavior, determine the temperature of the air entering the heating unit, in oC, and the corresponding mass flow rate, in kg/min.
A company had inventory on November 1 of 18 units at a cost of $22 each. On November 2, they purchased 23 units at $23 each. On November 6, they purchased 19 units at $25 each.
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