Question: The paddle wheel in Fig. 3.51 requires 0.8 N m of torque to rotate at 200 rpm. If it rotates for 40 minutes, determine the

The paddle wheel in Fig. 3.51 requires 0.8 N ˆ™ m of torque to rotate at 200 rpm. If it rotates for 40 minutes, determine the final temperature of the 0.4 kg of nitrogen contained in the insulated volume, initially at 25°C and 200 kPa. The frictionless piston maintains a constant pressure. Assume constant specific heats.
Figure 3.51

Piston 7, P, 25C 200 kPa 0.4 kg Nitrogen

Step by Step Solution

★★★★★

3.39 Rating (161 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

State 1 T 1 25C 298 K P 1 200 kPa m 04 kg C p 1042 kJkgK No heat transfer ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

962-P-T-H-A-1-L (1976).docx

120 KBs Word File

Students Have Also Explored These Related Thermodynamics Questions!

Consider two cases involving parallel flow of dry air at V = 1 m/s, T = 45C, and atmospheric pressure over an isothermal plate at T s = 20C. In the first case, Re x.c = 5 x 10 5 , while in the...

The paddle wheel in Fig. 3.50 requires 0.8 N m of torque to rotate at 200 rpm. If it rotates for 40 minutes, determine the final temperature of the 10 kg of nitrogen contained in the insulated rigid...

If the paddle wheel is removed from the volume of Problem 3.73 and 4800 kJ of heat is added to the volume with a resistance heater, determine the final temperature of the nitrogen. Figure 3.50 T, 25...

For the wheel described in Problem 16.22, compute the force exerted on the paddle when the wheel rotates at 40 rpm. In Problem Shown in Fig. 16.20 is a small decorative wheel fitted with flat paddles...

A torque of 50 Nm is required to rotate the paddle wheel shown in Fig. 6.47 at 60 rad/s. If it rotates for 2 minutes during which time 200 kJ of heat is transferred to the air from a reservoir,...

Create charts to better understand data sets. For cross-sectional data, use a scatter chart. For time series data, use a line chart. Linear y = a + bx Logarithmic y = ln(x) Polynomial (2nd order) y =...

GIVE DETAILED ANSWERS AND EXPLANATION 1. A rigid tank contains a hot fluid that is cooled while being stirred by a paddle wheel. Initially, the internal energy of the fluid is 800 kJ. During the...

Consider the device illustrated in Figure 21.3. A string is attached to a paddle wheel that is immersed in a viscous liquid in a container. As the string is pulled, the paddle wheel rotates at...

Let F = (6z,0,0) and let n be a unit vector aligned with the axis of a paddle wheel located on the x-axis. a. If the axis of the paddle wheel is aligned with n = (0,0,1) , how fast does it spin? b....

Name: Lab Date: Time: 3. Introduction The first law of thermodynamics states that heat and work are equivalent forms of energy, work can be transformed into heat and vice versa. This simple...

3 . 1 1 1 ( Moran 8 t h edition ) A piston - cylinder device assembly fitted with a paddle wheel contains air, initially at p 1 = 3 0 l b f i n 2 , T 1 = 5 4 0 F , and V 1 = 4 f t 3 . The air...

The daily demand for substitute teachers in the Metro Manila public school system follows the probability distribution given in the table below. The agency head wants to know how many teachers they...

Water in a 5 - cm-deep pan is observed to boil at 98oC. At what temperature will the water in a 40 - cm-deep pan boil? Assume both pans are full of water.

In the United States, it is generally expected that the primary beneficiary of business firms is the _ _ _ _ _ _ _ _ _ _ . Option A stockholder. Option B supplier. Option C rank - and - file...

Suppose that X, F, and Z are jointly.dntributed randum.vatiables, that is, they are defined on the same sample space. Suppose that we also have the following ELX) =4 E(Y) -2 E(Z) =-9 Var (X)-26 'ar...

False Value Hardware began 2016 with a credit balance of $31,800 in the allowance for sales returns account. Sales and cash collections from customers during the year were $740,000 and $700,000,...

It is estimated that 26% of all California adults are college graduates and that 32% of Califorria adults are regular internet users. It is also estirmated that 20% of Califomia adults are both...

On June 1 st , Lucy & Bros received an order for 500 cupcakes. Lucy delivered the cupcakes to the client on June 25 th . A $50 deposit was received on June 5 th and the remaining $450 was paid on...

Chang is studying the growth of a particular type of plant. He is testing the effects of three growth factors: lighting, age, and temperature. Here are the levels he's testing for each. Growth factor...

An article in the Wall Street Journal observes: For 2008, productivity grew an astounding 2.8% from 2007 even as the economy suffered through its worst recession in decades. How is it possible for...

A piston/cylinder contains 0.001 m3 air at 300 K, 150 kPa. The air is now compressed in a process in which P V1.25 = C to a final pressure of 600 kPa. Find the work performed by the air and the heat...

Helium gas expands from 125 kPa, 350 K and 0.25 m3 to 100 kPa in a polytropic process with n = 1.667. How much heat transfer is involved?

A piston/cylinder in a car contains 0.2 L of air at 90 kPa, 20C, shown in Fig. P5.107. The air is compressed in a quasi-equilibrium polytropic process with polytropic exponent n = 1.25 to a final...

Level of significance, null and alternate hypotheses, P-value, comparison and will you reject or fail to reject, conclusion in the context of the application Teacher ratings: Grades -Professor Stone...

What is the capacity for the container below 30cm 15cm 20 cm give answer in nearest tenth of a liter

1. The Fort Stockton Furniture Co. has the following financial data. Prepare an income statement in good accounting order and compute earnings per share. Sales Depreciation expense Debt (11% interest...