One mole of ideal gas, initially at 50^OC and 1 bar, is changed to 150^oC and 4bar by 2 different mechanically reversible processes as follows:

process 1: the gas is first heated at constant pressure until its temperature is 150^oC and then it is compressed isothermally to 4 bar

process 2:the gas is first compressed adiabatically to 4bar and then it is cooled at constant pressure to 150^OC

i)Assume C_v =2.5R and C_p=3.5R, estimate the heat(J) and work(J) for both processes

ii)Select the most energy efficient process.Justify your answer.

Question 1:In the layout of a printed circuit board for an electronic product, there are 12 different locations that can accomodate chips. (a) If Five different types of chips are to be placed on the board, how many different layouts are possible? (b) What is the probability that five chips that are placed on the board are of the same type? Question 2: A Web ad can be designed from 4 different colors, 3 font types, 5 font sizes, 3 images, and 5 text phrases. A specific design is randomly generated by the Web server when you visit the site. Let A denote the event that the design color is red and let B denote the event that the font size is not the smallest one. Find P(A ∪ B0 ) and P(B|A). Question 3: A batch of 500 containers for frozen orange juice contains 10 defective containers. Three are selected randomly without replacement from the batch. (a) What is the probability that the second one is defective given that the third one is defective? (b) What is the probability that the third one is defective? (c) What is the probability that the first one is defective given that the other ones are not defective? Question 4: A player of a video game is confronted with a series of 4 opponents and an 80% probability of defeating each opponent. Assume that the results are independent (and that when the player is defeated by an opponent the game ends). (a) What is the probability that a player defeats all 4 opponents in a game? (b) If the game is played 4 times, what is the probability that the player defeats all 4 opponents at most twice. Question 5: A credit card contains 16 digits. It also contains a month and year of expiration. Suppose there are one million credit card holders with unique numbers. A hacker randomly selects a 16-digit credit card number. (a) What is the probability that it doesn’t belong to a real user? (b) Suppose a hacker has a 10% chance of correctly guessing the month 2 of the expiry and randomly selects a year from 2018 to 2025. What is the probability that the hacker correctly selects the month and year of expiration (all the years are equally likely)? Question 6: An optical inspection system is to distinguish among different parts. The probability of a correct classification of any part is 98%. Suppose that 3 parts are inspected and that the classifications are independent. Let the random variable X denote the number of parts that are correctly classified. (a) Determine the probability mass function X. (b) Find P(X ≤ 2)

Operating Budget
• Review 1: Purchase Budget and Cash Collections
• Capes Corporation is a wholesaler of industrial goods. Data regarding the store's operations
• follow:
• · Sales are budgeted at $390,000 for November, $360,000 for December, and $340,000 for January.
• · Collections are expected to be 85% in the month of sale, 10% in the month following the sale, and 5%
uncollectible.
• · The cost of goods sold is 80% of sales.
• · The company purchases 40% of its merchandise in the month prior to the month of sale and 60% in the
month of sale. Payment for merchandise is made in the month following the purchase.
• · The November beginning balance in the accounts receivable account is $77,000.
• · The November beginning balance in the accounts payable account is $320,000.
• Required:
• a. Prepare a Schedule of Expected Cash Collections for November and December.
• b. Prepare a Merchandise Purchases Budget for November and December

Unit Purchase Budget
A sales budget is given below for one of the products manufactured by the Key Co.:
January.................. 21,000 units
February................ 36,000 units
March.................... 61,000 units
April...................... 41,000 units
May....................... 31,000 units
June....................... 25,000 units
The inventory of finished goods at the end of each month should equal 20% of the next month's sales. However, on December 31
the finished goods inventory totaled only 4,000 units.
Each unit of product requires three specialized electrical switches. Since the production of these specialized switches by Key's
suppliers is sometimes irregular, the company has a policy of maintaining an ending inventory at the end of each month equal to
30% of the next month's production needs. This requirement had been met on January 1 of the current year.
Required: Prepare a budget showing the quantity of switches to be purchased each month for January, February, and March and in
total for the quarter.

Simple Rate of Return
• (Ignore income taxes in this problem.)
• Ducey Corporation is contemplating purchasing equipment that would increase sales revenues by
$79,000 per year and cash operating expenses by $27,000 per year. The equipment would cost
$150,000 and have a 6 year life with no salvage value. The annual depreciation would be
$25,000.
• Required: Determine the simple rate of return on the investment to the nearest tenth of a percent.
Show your work.

5 examples of veblen goods

10 Examples of Inferior Goods