rate constant相关的公式有:r=k[A]^a[B]^b,其中k是速率常数,与浓度无关,也称为速率系数。此外,Eyring-Polanyi equation也涉及到rate constant,其公式为:k=reaction rate constant T=absolute temperature R=gas constant kB=Boltzmann constant h=Planck's constant。 以上内容仅供参考,建议查阅化学书籍或咨询化学...
Rate constant k1 of CH4 + MCH3 + H + M was determined from time profiles of IR emission at 3.4 μm obtained for a CH4/Ar mixture heated by incident shock waves at pressures 0.40–0.82 atm and temperatures 1400–2500 K. The emission decrease due to CH4 decay in a very short perio...
:a constant ratio between two things arateof exchange b :a price or charge set according to a scale or standard hotelrates taxrate 2 :a quantity, amount, or degree of something measured in units of something else the unemploymentrate ...
At T = 1650 K, the rate constant k-1a calculated from the value of k1a proposed by Lamoureux et al. [52], that was based on ΔfH°298(NCN) = 444.3 kJ mol–1, is a factor of about 0.5 lower than k-1a from Ref. [17]. The value reported by Teng et al. [16], with Δ...
The rate constant for the recombination reaction was determined together with the rate constant for reaction (1). The measurements gave a rate constant value for reaction (1) of k 1 = (6.5卤1.2)路10 13 cm 3 /mol s.doi:10.1002/bbpc.19981020712R. Deters...
The rate constantkfor a certain reaction is measured at two different temperatures: Assuming the rate constant obeys the Arrhenius equation, calculate the activation energyEafor this reaction. Round your answer to2significant digits. ...
The rate constants k2/k3/k4 have the respective fractional values 0.62:0.27:0.11. From the H decay rates the rate constant k1 for H + O2 + M → HO2 + M is then determined to be 6.8 ± 1.0 × 1016 cm6 mol-2 sec-1 for M = Ar or He, in excellent agreement with two ...
Furthermore, the constant necessity to hire and train new employees to be productive can be costly, weighing down on a company’s profit margins (and reducing output). Therefore, the attrition rate reflects the pace of employee turnover, expressed as a percentage, which serves as a key perfor...
In the latter case, the rate constant (kMT) of ATP binding is given by (kATPoffkMT/k-MT). kMT becomes small at large kATPoff /k-MT. The dissociation rate (kapooff) from MD-apo to D-apo was calculated to be 8.3 ± 0.4 s−1 under no load. The unbinding rates of ...
K3 is assumed to be constant both with increased body weight and at increasing ration levels above maintenance. An alternative means of calculating K3 requires a value for the proportion of the ingested ration that is lost as feces (f), the proportion lost as excreta (e) and the mass ...