Question: 1. Show that the work done when a system expands from an initial volume, Vi to a final volume, Vf, is w=pexV. What is the

1. Show that the work done when a system expands from

1. Show that the work done when a system expands from an initial volume, Vi to a final volume, Vf, is w=pexV. What is the sign for w if (i) the gas expands and (ii) if the gas is being compressed? Draw diagrams to show the change in volume and the direction of the force as the gas expands and compresses. Calculate the work done when gas expands from a volume of 10dm3 to 25dm3 against a constant external pressure of 10 atm. A chemical process generates 80kJ of heat and causes a change in volume for a gas from 30dm3 to 20 dm3. This process occurred in an isobaric vessel and therefore, pressure was kept constant at 5 bars. Calculate the work done (taking notice of the signs!). What is the change in internal energy for the system

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

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

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Chemistry Questions!

A ) Starting with the 1 st Law, show that T T U S T P V V . ( Don t overthink this one! ) B ) Using an appropriate Maxwell relation, show that T V U P T P V T . C ) The van der Waals equation for a...

1) 1) Gas in a piston-cylinder device (closed system) expands from an initial volume of 0.2 m, pressure of 8 kPa to a final volume of 0.4 m, pressure of 2 kPa. This thermodynamic process is a...

THERMODYNAMICS: Explain the math in the reading and how it relates to calometry in layman terms EXPERIMENTS 6. Heats of Combustion 7. Strain Energy of the Cyclopropane Ring 8. Heats of lonic Reaction...

1) a) Find a general expression for w (work) when 1.000 mole of a pure chemical substance is compressed reversibly and isothermally from an initial volume Vi to a final volume VF. Do this for the...

q6 Part A In (Figure 1), consider the closed loop 1-+2 +3 >4->1 This is a cyclic process in which the initial and final states are the same. Use values po = 0.10 atm and Vo = 0.50 L Find the total...

Please help me with the following questions. 1. Part A The pV diagram in (Figure 1) shows a process abc involving 0.260 mol of an ideal gas. What was the temperature of this gas at points a, b, and...

Expand 1.00 mol of an monatomic gas initially at 5.00 kPa and 600 K from initial volume Vi = 1.00 m3 to final volume Vf = 2.00 m3. At any instant during the expansion, the pressure p and volume V of...

help me please Report Name Date Section \begin{tabular}{|l|l|l|} \hline Part I: Density of a Rubber Stopper & Trial 1 & Trial 2 \\ \hline Stopper Type & & \\ \hline Mass of rubber stopper & & \\...

Q.1 (50 Pt.) An ideal gas is enclosed in cylinder with frictionless piston at 300 K and 2 bar. The gas expands from the initial volume of 0.1 m to the final volume 0.2 m in a Two process . (a) The...

UNIVERISTY HELPP IN HERE NOT for TUTOR: dont submit if you dont do full THEM OR BAD RATE And in full explanation show all your work Solve the following system of nonlinear equations:x^2 + y^2 = 9 x^2...

A gyroscope flywheel of radius 2.83 cm is accelerated from rest at l4.2 rad/s2 until its angular speed is 2760 rev/min. (a) What is the tangential acceleration of a point on the rim of the flywheel...

On June 30, Collins Management Company purchased land for $400,000 and a building for $560,000, paying $360,000 cash and issuing a 5% note for the balance, secured by a mortgage on the property. The...

A feedback model of human reaction time used in analysis of vehicle control can use the block diagram model in Figure 9.69 with 1 Ge(s) = est and G(s) = = s(0.25 + 1) A typical driver has a reaction...

Challenges 491 10. Lottery Application Write a Lottery class that simulates a lottery. The class should have an array of five integers named lotteryNumbers. The constructor should use the Random...

1. Why should you avoid humour when communicating with people of a different culture?

2. Every culture has its own business protocol. What should you know about a cultures business protocol before you do business within that culture?

1. List the advantages and disadvantages of working in teams and describe the characteristics of effective teams.