7:50 Question 12.b of 16 An equilibrium is established for the exothermic reaction Br₂(g) + 5 F₂(g) = 2 BrFs (g). Adding Br₂. How would each of the following changes affect the partial pressure of fluorine at equilibrium? A) The partial pressure increases. 5G B) The partial pressure decreases. Submit The partial pressure does not change.

7:50 Question 12.b of 16 An equilibrium is established for the exothermic reaction Br₂(g) + 5 F₂(g) = 2 BrFs (g). Adding Br₂. How would each of the following changes affect the partial pressure of fluorine at equilibrium? A) The partial pressure increases. 5G B) The partial pressure decreases. Submit The partial pressure does not change.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Please work out question 44 and show work for explanation of how you came up with your answer.
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1. For each sequence given below, find a closed formula an for the nth term of the sequence (assume the first terms are ao) by relating it to another sequence for which you already know the formula. (a) 4, 5, 7, 11, 19, 35, ... (b) 0, 3, 8, 15, 24, 35, … . . (c) 6, 12, 20, 30, 42, ... (d) 0, 2, 7, 15, 26, 40, 57, ... (Hint: These might be called "house" numbers, as in "house of cards")
12:06 Question 6 of 15 Which of the following processes is both exothermic (at 1 atm) and spontaneous? A) Sublimation of CO₂ at 30 °C B) Dissolving NH4Cl(s) in water and the solution emperature drops C) Condensation of water at 99.5 °C D) H₂O(1)→ H₂O(g) at 101.0 °C Submit E) Freezing of water at 3 °C Tap here or pull up for additional resources
2. The flight of a model rocket can be modeled as follows. During the first 0.15 s the rocket is propelled upward by the rocket engine with a force of 16 N. The rocket then flies up while slowing down under the force of gravity. After it reaches the apex, the rocket starts to fall back down. When its downward velocity reaches 20 m/s, a parachute opens (assumed to open instantly), and the rocket continues to drop at a constant speed of 20 m/s until it hits the ground. Write a program that calculates and plots the speed and altitude of the rocket as a function of time during the flight.
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2. calculates the trajectory r(t) and stores the coordinates for time steps At as a nested list trajectory that contains [[xe, ye, ze], [x1, y1, z1], [x2, y2, z2], ...]. Start from time t = 0 and use a time step At = 0.01; the last data point in the trajectory should be the time when the oscillator "hits the ground", i.e., when z(t) ≤ 0; 3. stores the time for hitting the ground (i.e., the first time t when z(t) ≤ 0) in the variable t_contact and the corresponding positions in the variables x_contact, y_contact, and z_contact. Print t_contact = 1.430 X_contact = 0.755 y contact = -0.380 z_contact = (Output floating point numbers with 3 decimals using format (), e.g., "t_contact = {:.3f}" .format(t_contact).) The partial example output above is for ze = 10. 4. calculates the average x- and y-coordinates 1 y = Yi N where the x, y, are the x(t), y(t) in the trajectory and N is the number of data points that you calculated. Store the result as a list in the variable center = [x_avg, y_avg]…
4:37 Question 10 of 16 A) Although this lowers the yield, it increases the rate of reaction. The production of ammonia from its elements (Haber-Bosch process) is exothermic. If temperature is increased, how does this affect reaction rate and yield? B) It increases both rate and yield. C) It decreases both rate and yield. 5GW D) Although it lowers reaction rate, it increases the overall yield. Tap here or pull up for additional resources Submit