An electrically heated process is known to exhibit second-order dynamics with the following parameter values: k, 3°ckw1, r 4 min, 0.5. the process initially is at steady state at 50°c with heater input of 20 kw determine the required heater input in order to increase the process (a) temperature to 80°c. (3 marks) (b) determine the maximum temperature of the resulting response and the time required to reach its first maximum value. 8 marks) plot the process temperature as a function of time and state the important (c) characteristics (10 marks) explain the significance of the damping coefficient in the response of a second (d) order process to a step input. 4 mark lemical nlant

Organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic 

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