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The decomposition of PCl5 is shown below:
PCl5(g)⇌PCl(g) + Cl(2)
Kc 3 = 0.029 at 85°C
Find out if the reaction proceeds forward, backward, or if the system is at equilibrium when a 1 liter
container is filled with 0.4 mole PCl5, 0.5 mole PCl3, and 0.2 mole Cl2.
A man 6 ft. tall walks away from a lamp post 18 ft. high at the rate of 4 ft. per second. How fast does
the shadow of the man lengthen?
If we start with 0.00240 M NOBr, what concentration of NOBr will remain after 5.00 minutes of reaction? The reaction is second order.
A mixture of 0.20 M acetic acid and 0.30 M sodium acetate is give. Calculate the pH of the medium if the pKA of the acetic acid is 4.76
A ladder 5 meters long is leaning against the wall. The bottom is initially 3.5 meters away from the
wall. You are pushing it towards the wall at a rate of 0.20 m/s. How fast is the top of the ladder moving
up the wall 12 seconds after you start pushing?
An array containing 10 predefined double values are already provided for you in the code editor. Print each of the element out in separate lines, starting from the last array element down to the first.
Each outputted value must also only show up to two decimal places.
Output
Multiple lines containing a float number.
5.10
5.50
4.00
4.02
3.00
3.66
2.50
2.20
1.21
1.40
Write a program using string functions that determine if the input word is a palindrome. A
palindrome word is a word that produces the same word when it is reversed.
Sample Input/output Dialogue:
Enter a word: AMA
Reversed: AMA
“It is Palindrome”
Enter a word: MAYOR
Reversed: ROYAM
You burn a 15g jellybean to warm 50 mL of water, which increases the temperature of the water 25 °C. How many calories of heat are transferred from the jellybean to the water? Assume there is no heat loss.
Write a program using standard string functions that accepts a price of an item and
display its coded value. The base of the key is:
X C O M P U T E R S
0 1 2 3 4 5 6 7 8 9
Sample Input/output Dialogue:
Enter Price: 489.50
Coded Value: PRS.UX
A spaceship is traveling at half the speed of light (0.5c). Their onboard clock shows that they traveled for a full year. How much time passed on Earth during their “year”? (Give your answer in years)
