Friday

July 25, 2014

July 25, 2014

Number of results: 42,865

**Bio Help Please **

1)How can you indicate that the bacteria have taken up the plasmid? 2)What is the purpose of the LB/amp(-) plate? Should there be bacterial growth on the plate? 3) Why would one compare plates LB/amp (-) and LB/amp (+)?
*March 30, 2013 by Melissa*

**Bio Help Please!!!**

1)How can you indicate that the bacteria have taken up the plasmid? 2)What is the purpose of the LB/amp(-) plate? Should there be bacterial growth on the plate? 3) Why would one compare plates LB/amp (-) and LB/amp (+)?
*March 31, 2013 by Melissa*

**biology**

Which bacterial plates control for: 1) If the E. coli cells were transferred correctly: 2) If the E. coli cells can grow on LB: 3) If the Ampicillin is working correctly: 4) If the “stock” E. coli cells were contaminated with plasmid: Possible choices for each number are: "-"...
*July 18, 2009 by Jenn*

**Physics**

A 60 watt light bulb in a household circuit at 120 V carries a current of 0.500 amp. (An amp was defined in class as a way to measure charge movement. One amp is one coulomb per second.) How many electrons move through this light bulb in five minutes?
*March 7, 2011 by Anonymous*

**calculus-changing voltage**

V = IR V is increasing at the rate of 1 volt/sec while I is decreasing at the rate of 1/3 amp/sec. Let t = time in sec What is dV/dt? What is dI/dt? Find the rate at which R is changing when V = 12 volts and I = 2 amp. Thanks. Please ignore this. I got the answer.
*December 9, 2006 by Jen*

**Biology**

The reason you might see fewer colonies on your LB/Amp/Arabinose + plate (compared to the number of colonies..? The reason you might see fewer colonies on your LB/Amp/Arabinose + plate (compared to the number of colonies that you see on your LB/Amp + plate) is because? a. UV ...
*October 18, 2009 by blair*

**physics**

Expensive amplifier A is rated at 250 W, while the more modest amplifier B is rated at 45 W. (a) Estimate the sound level in decibels you would expect at a point 3.5 m from a loudspeaker connected in turn to each amp. (b) Will the expensive amp sound twice as loud as the ...
*November 7, 2013 by emy*

**physics**

8. The current in a simple series circuit is 5 amp. When an additional resistance of 2 ohms is inserted in series, the current drops to 4 amp. What is the resistance of the original circuit?
*March 14, 2011 by okay*

**precalc**

1. Write an equation of the following using the particular function. 1. The function is sine. The amp is 2 and the domain is [0, 2]. I got y=2sin(pie(x)) but i plugged that in my calc and it doesnt look like the graph on my worksheet 2. The function is cosine. The amp is 3 and...
*January 24, 2013 by Rebekah*

**Calculus**

If V volts are measured across a resistance of R ohms in a circuit carrying a current of I amperes, V=IR. At a certain instant, the voltage is 250 and is increasing at a rate of 4 volts/min, while the current is 0.5 AMP and is increasing at a rate of 0.01 amp/min. Find the ...
*February 28, 2013 by Trevor*

**Calculus**

Calculus If V volts are measured across a resistance of R ohms in a circuit carrying a current of I amperes, V=IR. At a certain instant, the voltage is 250 and is increasing at a rate of 4 volts/min, while the current is 0.5 AMP and is increasing at a rate of 0.01 amp/min. ...
*February 28, 2013 by Trevor*

**physics**

35 amps of current goes through a 40 amp fuse. What happens? 25 amps of current goes through a 15 amp fuse. What happens? Think about what a fuse is used for. Why would you put a fuse in a circuit?
*April 13, 2007 by Anonymous*

**microbiology**

What is a unique mono-nucleotide of the RNA? Is it GMP AMP TMP CMP or UMP thanks
*October 30, 2007 by Teresa*

**Physics**

Please can you help out: 1)The Potential diff across the terminals of a battery is 8.5v when there is a current of 3amps in the cct from the -ve to the +ve terminal. When the current is 2amps in the reverse direction, the potential diff becomes 11volts. a) what is the internal...
*April 17, 2007 by Charles*

**physics**

Calculate the power of a device that requires 1.98 mA at 25.5 V. I know how to do the problem. i am just confused on how to convert megaAmps(which is mA right?) to amps. i think there are 1million amps in one mega amp? is that correct or is it the other way. so would you do 1....
*April 15, 2012 by hannah*

**PHYICAL**

If average current of 5.5 Amp is passing through a condutor for 2 min ,What is the charge in Coulomb ( C ) crossed any cross sectional area.
*July 10, 2012 by asas*

**Physica**

if an averge current of 5.5 Amp is passing through aconductor for 2 min . what is the charge in Coulomb ( C ) crosstional areaed any cross sec
*August 3, 2012 by LOlo*

**Physica**

if an averge current of 5.5 Amp is passing through aconductor for 2 min . what is the charge in Coulomb ( C ) crosstional areaed any cross sectional area
*August 3, 2012 by mmm*

**chemistry**

I have 3 mg/mL AMP in 50ul stock solution; How do I dilute it to 50ug in 50ul thanks you
*July 5, 2012 by Jenni*

**AP BIO**

If a particular experiment were known to have a transformation efficiency of 3 x 103 bacteria/ěg of DNA, how many transformant colonies would be expected to grow on the LB/amp/ara plate?
*April 7, 2010 by Samuel*

**energy conversion**

A 5hp 230volt shunt motor takes 18 amp when operating at full load. The Shunt-field resistance is 115ohms and the armature resistance is 0.25 ohm. calculate the value of the starter resistor if the armature current is limited to 1.5 times the rated value at the starting ...
*September 20, 2010 by baskuuugin*

**Digital Logic**

The input voltage to a certain op-amp inverting amplifier is 10 mV, and the output is 2 V. What is the closed-loop voltage gain?
*December 4, 2007 by Matthew*

**physics **

A wire that is 0.86 meters long is moved perpendicularly through a constant magnetic field of strength 0.035 newtons/amp·meter at a speed of 6.0 meters/second. What is the emf produced?
*December 20, 2013 by Anonymous*

**chemistry**

can someone please explain how to indicate where a label appears in a product? for example: where the label appears in 2-[14C]-Glycine --> AMP
*April 28, 2011 by brian*

**Chemistry**

can someone please explain how to indicate where a label appears in a product? for example: where the label appears in 2-[14C]-Glycine --> AMP
*April 28, 2011 by brian*

**biochemistry**

can someone please explain how to indicate where a label appears in a product? for example: where the label appears in 2-[14C]-Glycine --> AMP
*May 2, 2011 by anony*

**electrical engineering**

Input range: -100mV to +60mV Voltage supplies to the op-amp= ±15V how do we find the input offset voltage?
*February 3, 2012 by eng*

**College Chemistry**

can someone please explain how to indicate where a label appears in a product? for example: where the label appears in 2-[14C]-Glycine --> AMP
*May 2, 2011 by ana*

**biology**

Compare and Contrast: diglyceride vs. dipeptide vs. disaccharide Compare and contrast: GTP vs. UDP vs. AMP
*February 11, 2008 by Anonymous*

**bio**

Compare and Contrast: diglyceride vs. dipeptide vs. disaccharide Compare and contrast: GTP vs. UDP vs. AMP
*February 11, 2008 by Anonymous*

**organic chemistry**

can someone please explain how to indicate where a label appears in a product? for example: where the label appears in the patheway 2-[14C]-Glycine --> AMP
*May 2, 2011 by anony*

**physics**

A 10 amp fuse is connected in series to 4 identical 5 ohm resistors in parallel with each other. What is the maximum size battery that could be connected without blowing the fuse?
*February 24, 2011 by Crystal*

**Anatomy**

1)Which two molecules/chemicals make up the backbone of the DNA molecule? 2)Which organelle makes most ATP? 3)AMP would have ________ phosphate(s) attached to it? 4)Which is the smallest carbohydrate 5)Which type of chemical bond involves a sharing of electrons
*October 15, 2008 by Stephanie*

**12th Calculus**

suppose that at any tiem t(sec) the current i(amp) in an alternating current circuit is i=2cost+2sint. What is hte peak (largest magnitude) current for this circuit?
*November 18, 2008 by ee*

**CHEMISTRY**

Chromium plating is done using a dichromate solution. How long would it take to plate 1.0x10-2mm thick onto a car bumper with surface area 0.25m^2 in a 25.0 Amp electrolytic cell? (density of chromium is 7.19g/cm^3)
*May 30, 2013 by PreMed33*

**physics**

Expensive amplifier A is rated at 210W , while the more modest amplifier B is rated at 45W . Estimate the sound level in decibels you would expect at a point 9.0m from a loudspeaker connected in turn to each amp.
*November 18, 2013 by waves*

**math: and i really need help**

You plug a microwave into a 20-ampere (amp) electrical circuit. The microwave use up to 12.5 amps. At most, how many amps are availible for other appliances? 20 - 12.5 = ?? amps
*October 24, 2006 by pinkpolkadots7*

**Physics**

A 20 volt battery has a 4 ohm internal resistance. There is a 5 amp fuse in the main line of the battery. How many 6 ohm resistors can be connected in parallel across the battery before thefuse blows?
*June 23, 2014 by Chyna *

**biology**

If a particular experiment were known to have a transformation efficiency of 3 x 10^3 bacteria/µg of DNA, how many transformant colonies would be expected to grow on the LB/amp/ara plate? You can assume that the concentration of DNA and fraction of cells spread on the LB agar ...
*March 5, 2009 by nathan*

**Social Studies**

Which type of amp would you use to find out the population of northern canada thematic? Which type of map would you use to compare the elevations of the alpha and andes physical?
*January 9, 2013 by Jerald*

**differential equations**

Search: A 8 kg mass is attached to a spring hanging from the ceiling and allowed to come to rest. assume that the spring constant is 40 n/ m and a damping constant is 3 N/m. At t=0 and external force of 2 sin(2t+PI/4)N is applied to the system. determine amp, frequency and ...
*April 18, 2011 by mike*

**Physics**

If the EMF produced in a wire is 0.88 volts and the wire moves perpendicular to a magnetic field of strength 0.075 newtons/amp·meter at a speed of 4.20 meters/second, what is the length of the wire in the magnetic field?
*May 16, 2013 by Jake*

**physics**

The circuit shown below has a 100 Ohm resistor and 50 Volt-sec/amp (a unit of inductance called the Henry) inductor connected to a 12V battery. It is a freshman physics tradition that inductors are very poorly The switch is closed at t = 0 seconds. What is the magnitude of the...
*December 4, 2013 by james*

**Amplifiers**

An op amp has a maximum output voltage swing of 10 Vpp and a voltage gain of 100. What is the largest peak to peak input signal that can be applied to the input without clipping the output signal?
*June 10, 2013 by Adam*

**Chemistry**

How would you start and finish these questions by a step by step process? Does Amp equal to Joules? 1. How many grams of aluminum can be produced by the electrolysis of aqueous aluminum chloride by a current of 5.00 amps for 5.00 hours? 2. Consider the following ...
*April 6, 2014 by Erika*

**physics**

Two blocks, A and B (with mass 50 kg and 100 kg, respectively), are connected by a string, as shown in the figure below. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between block A and the incline is μk = 0.28. Determine the ...
*March 15, 2012 by tom*

**calculus**

The voltage V (volts), current I (amperes), and resistence R (ohms) of an electric circuit are related by the equation V=IR. Suppose that V is increasing at a rate of 3 volt/sec while I is decreasing at a rate of 1/8 amp/sec. Let t denote time in seconds. Determine the rate at...
*September 27, 2012 by Avi*

**Chemistry**

biochemists consider the citric acid cycle to be the central reaction sequence in metabolism. One of the key steps is an oxidation catalyzed by the enzyme isocitrate dehydrogenase and the oxidizing agent NAD+. Under certain conditions, the reaction in yeast obeys 11th-order ...
*June 19, 2014 by Lety*

**Chemistry**

In this problem, your answers should be mathematical expressions involving a variable. Consider an ideal gas with an absolute temperature of T1 To what temperature would you need to heat the gas to double its pressure? T2=? I got T2=T1P times 2 but it is wrong
*October 17, 2012 by Bill*

**Math**

Amperes (abbreviated amp) measure the strength of electric current. An ohm is the unit of electrical resistance. In an electric circuit, the current varies inversely as the resistance. If the current is 24 amps when the resistance is 20 ohms, find the inverse variation ...
*May 14, 2012 by Haylie*

**Physics **

One mole of an ideal gas initially at a temperature of Ti = 7.4°C undergoes an expansion at a constant pressure of 1.00 atm to eight times its original volume. (a) Calculate the new temperature Tf of the gas.______J (b) Calculate the work done on the gas during the expansion....
*November 26, 2012 by Sally*

**physics**

A student throws a 9 gram of gum is thrown across the physics lab from a distance of 2.5 m. When the gum has a horizontal velocity of vo it connects with a mass on the end of 1.62 kg simple pendulum which is initially at rest. The pendulum has a length of L of 0.74 m. The gum ...
*April 12, 2010 by Jacob*

**Physics**

Please Help me on these: 3. What mathematical expression tells you to what percentage the charge is after n t1/2's? (All these should be multiplied by 100% to obtain the percentage.) 2- n V*C e-t/τ R*C 1 - 2^- n ((((((((((( I think this is right what do you think...
*March 7, 2012 by Ramin*

**Calculus (pleas help!!!)**

Find the absolute maximum and absolute minimum values of the function f(x)=(x−2)(x−5)^3+11 on each of the indicated intervals. Enter -1000 for any absolute extrema that does not exist. (A) Interval = [1,4] Absolute maximum = Absolute minimum = (B) Interval = [1,8...
*April 5, 2011 by Cady*

**Calculus (pleas help!!!)**

Find the absolute maximum and absolute minimum values of the function f(x)=(x−2)(x−5)^3+11 on each of the indicated intervals. Enter -1000 for any absolute extrema that does not exist. (A) Interval = [1,4] Absolute maximum = Absolute minimum = (B) Interval = [1,8...
*April 5, 2011 by Cady*

**Math**

I'm having trouble with a math problem, it says: A quantity of gas has a volume of 0.20 cubic meter and an absolute temperature of 333 degrees kelvin. When the temperature of the gas is raised to 533 degress kelvin, what is the new volume of the gas? Thank You. Assuming ...
*July 5, 2005 by Mirayah Robinson*

**physics**

A long straight wire of radius R = 1 cm carries a total current I = 1 Amp which flows uniformly through the cross-section of the wire. Draw a diagram of this wire and the current and the magnetic field which is produced. Using Ampere’s law solve for the magnitude of the ...
*March 11, 2010 by joshua*

**science **

If the pressure of 20.0 mL of a gas sample is increased by 4 times and the absolute temperature is doubled, what is the new volume?
*October 30, 2012 by Mickeykalle*

**science**

As the pressure of a fixed mass of a gas is increased at constant temperature, the density of the gas increases? As the absolute temperature of a fixed mass of an ideal gas is increased at constant pressure, the volume occupied by the gas increases? The absolute temperature of...
*November 24, 2007 by Anonymous*

**Calculus Help Please!!!**

Find the absolute maximum and absolute minimum values of f on the given interval. f(x) = 2x^3 − 3x^2 − 72x + 7 , [−4, 5]
*April 1, 2014 by JYoung*

**Physics**

A cylinder with a movable piston contains gas at a temperature of 27 degrees celsius, a volume of 1.50 meters cubed, and an absolute pressure of 0.200 X 10 to the fifth Pa. What will be its final temperature if the gas is compressed to 0.700 meters cubed and the absolute ...
*January 23, 2013 by Clay*

**Physics**

A piston contains 1m^3 of helium at a temperature of 250 K and an absolute pressure of 1.0kPa. The following changes are made in sequence: (a) First the volume of the piston is decreased to 0.2 m^3 while the temperature is kept constant, what is the pressure of the gas? (b) ...
*February 17, 2011 by Pressure of gas*

**physics **

Use the Biot Savart law to compute the magnetic field at the center of a metallic ring. the ring has a radius of 10^-6 m and is connected to two infinite wires. the current in the wires is 1 amp. the ring is lying in the [x,y,z= 0 ] plane. the first wire is attached to the ...
*May 21, 2013 by karan*

**calculus**

Find the absolute maximum and absolute minimum values of f on the given interval. f(x) = e−x − e−7x, [0, 1]
*November 3, 2013 by Anonymous*

**physics conceptual**

A box containing a pebble is attached to an ideal horizontal spring and is oscillating on a friction-free air table. When the box has reached its maximum distance from the equilibrium point, the pebble is suddenly lifted out vertically without disturbing the box. Will the ...
*July 8, 2009 by Anonymous*

**physics**

calculate the final volume of gas if the original pressure of gas at STP is doubled and its temperature is 3 times.
*February 22, 2014 by satyam*

**physics**

1. Outlets of two rooms are placed in parallel on a single circuit (120 volts). How many 100 watt light bulbs could you run on a circuit that had a 15 amp circuit breaker (max of 15 amps total) need help setting up problem?? Each 100 W lamp draws I = P/V = 100/120 = 0.83 Amps...
*November 17, 2006 by mitch*

**engineering**

A thermometer is used to measure the temperature of a gas flow through a pipe. The gas temperature is read at 500°C and the duct temperature is measured to be 350°C. The thermometer is cylindrical with a diameter of 1 mm and an intrusion length of 1 cm. It can be assumed that ...
*August 14, 2013 by jim*

**physics**

Three moles of an ideal gas are compressed from 5.5*10^-2 to 2.5*10^-2 m^3. During the compression, 6.1*10^3J of work is done on the gas, and heat is removed to keep the temperature of the gas constant at all times. Find the temperature of the gas. Can anyone please give me ...
*March 2, 2008 by Stella*

**PHYSICS**

Three moles of an ideal gas are compressed from 5.5*10^-2 to 2.5*10^-2 m^3. During the compression, 6.1*10^3J of work is done on the gas, and heat is removed to keep the temperature of the gas constant at all times. Find the temperature of the gas. Can anyone please give me ...
*March 2, 2008 by sTELLA*

**Chemistry**

1. A gas initially at 10 C must be changed to _____ C to triple the pressure. 2. When a student plotted ln [vapor pressure of a gas] vs. inverse Kelvin temperature, she obtained a straight line with a slope equal to -20000 K. According to the Clausius Clapeyron equation, ...
*April 23, 2009 by Joan*

**Chemisty HELP ASAP**

In this problem, your answers should be mathematical expressions involving a variable. Consider an ideal gas with an absolute temperature of T1 To what temperature would you need to heat the gas to double its pressure? T2=? I got T2=2P but it is wrong
*October 17, 2012 by Bill*

**help on a question**

I needed help on a physical science question. When the molecules in a body move with increased speed, it's possible that the body will change from a... A) gas to a liquid B) gas to a solid C) liquid to a solid D) liquid to a gas PLEASE HELP ME!! If the molecules are increasing...
*July 31, 2005 by kelly jo*

**physics**

a metal tank with a volume of 3.10 L will burst if the absolute pressure of the gas exceeds 100 atm. If 11 mol of an ideal gas is put into the tank at a temperature of 23.0 C, to what temperature can the gas be warmed before the tank ruptures? Neglect the thermal expansion of ...
*November 19, 2009 by sarah*

**Physical Chemistry2**

One mole of a van der Waals gas with a=15.0 l^2 atm mol^−2 and b=0.015 l mol^−1 is expanded reversibly and isothermally from 1 atm to 0.5 atm at a temperature of 300 K. Calculate w for this process, and compare it with that required to expand an ideal gas between ...
*September 29, 2008 by Amber*

**practical math**

A quantity of gas has a volume of 0.20 cubic meter and an absolute temperature of 333 degrees kelvin. When the temperature of the gas is raised to 533 degrees kelvin, what is the new volume of the gas? (Assume that there's no change in pressure.)
*July 17, 2012 by Anonymous*

**biology**

Given the part of the molecule shown below, can the underlined atom participate in a hydrogen bond with an approriate bonding partner? −O−−−H −C−H−− −N−−−H −O−H−− −C−&#...
*March 12, 2013 by selly*

**Calculus Help Please!!!**

Find the absolute maximum and absolute minimum values of f on the given interval. f(t) = (t square root of (64 − t^2)), [−1, 8]
*April 1, 2014 by JYoung*

**Calculus Help Please!!!**

Find the absolute maximum and absolute minimum values of f on the given interval. f(t) = (t square root of (64 − t^2)) ,[−1,8]
*April 1, 2014 by Tanya *

**Urgent Calc Help!!! Thanks!**

Find the absolute maximum and absolute minimum values of f on the given interval. f(x) = xe^((−x^2)/98), [−6, 14]
*April 1, 2014 by Faith*

**Calculus Help Please!!!**

Find the absolute maximum and absolute minimum values of f on the given interval. f(x) = xe^((−x^2)/98), [−6, 14]
*April 1, 2014 by Kim*

**Calculus**

Recall that the average velocity between times t1and t2 is calculated using vave = y(t2) − y(t1)/t2 − t1. We are given that y = 14t − 1.86t^2. Evaluating at t = 1, we have y(1) = 14(1) − 1.86(1)2 = 12.14. Thus, the average velocity between times 1 and 1...
*October 8, 2011 by Prater*

**Calc**

Recall that the average velocity between times t1and t2 is calculated using vave = y(t2) − y(t1)/t2 − t1. We are given that y = 14t − 1.86t^2. Evaluating at t = 1, we have y(1) = 14(1) − 1.86(1)2 = 12.14. Thus, the average velocity between times 1 and 1...
*September 4, 2013 by P*

**Calculus**

Find the absolute maximum and the absolute minimum values of f(x)=x−7cos(x) on the interval [−đ,đ).
*July 7, 2013 by Robin*

**calculus**

Find the absolute maximum and absolute minimum values of f on the given interval. f(t) = (36 − t^2)^ 1/t, [−1, 6]
*November 3, 2013 by Anonymous*

**Calculus Help!**

Find the absolute maximum and absolute minimum values of f on the given interval. f(x) = xe^(−x^(2)/98), [−6, 14]
*April 1, 2014 by Katir *

**science**

A piston pump containing 2 liters of nitrogen gas at 3000 psia (absolute) pressure empties its entire contents into a 10 liter pressure container. Before the transfer of gas the 10 liter container already contained nitrogen gas at 100 psia (absolute) pressure. Assuming ...
*February 24, 2012 by Stephanie*

**thermo**

four hundred cubic centimeters of a gas at 740mm Hg absolute and 18 degree celcius a process until the pressure until the pressure becomes 760mm Hg absolute and the temperature o degree celcius. what is the final volume of the gas
*October 3, 2012 by 111111*

**math calculus**

Find the absolute extrema of the function on the closed interval. Use a graphing utility to verify your results. (Round your answers to two decimal places. If an answer does not exist, enter DNE.) g(x) = (x^2 − 4)^2/3, [−5, 3] find absolute maximum (x, y) = ...
*March 31, 2013 by akash*

**science**

If the absolute temperature of gas is 600K, the temperature in degrees celsius is A.273 b.705c
*January 30, 2014 by Alice*

**Math I'm so confused**

Find the absolute maximum and absolute minimum values, if any, of the function. (If an answer does not exist, enter DNE.) f(x) = x2 − x − 5 on [0, 5] Come someone please show me how to do these problems? I'm lost
*March 30, 2011 by Josh*

**Chemistry**

A gas-filled balloon having a volume of 3.50 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are −23°C and 3.00 10−3 atm, respectively. Calculate the final volume of the balloon.
*March 12, 2010 by Heath*

**Chemistry**

An ideal monatomic gas initially at 298 K and 1 atm pressure is expanded from a volume of 1 liter to 2 liters. Consider separately isobaric, isothermal and adiabatic expansions to accomplish this. In each case, calculate the following: a) The final temperature of the gas b) ...
*January 30, 2011 by Marcus*

**Phisical Science**

If the absolute temperature of a gas is 600K, the temperature in degrees Celsius is? C= K-273 327 C what is the first step to designing an experiment what is a mole in measurement like mole mass. please help me get info. explain the relationship between velocity and ...
*June 16, 2005 by Julio Paz*

**physics**

A 22.0-L tank of carbon dioxide gas (CO2) is at a pressure of 9.40 105 Pa and temperature of 22.0°C. (a) Calculate the temperature of the gas in Kelvin. K (b) Use the ideal gas law to calculate the number of moles of gas in the tank. mol (c) Use the periodic table to compute ...
*April 29, 2013 by Annette*

**Physics**

2. A Sample of V1=6.2L of pure nitrogen gas at 21.85 degrees Celsius and total pressure (gauge plus ambient) of p1=155,700 Pa is heated so that the vrms for the gas molecules increase by 9%. Find the new absolute temperature for the gas, and compute the pressure for the ...
*January 22, 2013 by Dawna*

**chem please help!**

Krypton gas is four times denser than neon gas at the same temperature and pressure. Which gas is predicted to effuse faster? i got neon which is correct but How much faster? how many times? i dont know how to get htis
*January 8, 2013 by Samantha*

**physics**

Consider N atoms conŻned on a surface of area A at temperature T . The atoms form a two-dimensional (2D) gas of classical, noninteracting particles. (a) Calculate the partition function for the system. (b) Calculate the Helmholtz free energy, F , of the gas. Compare it with ...
*June 13, 2011 by esmat*

**Physics**

As its volume is doubled from an initial value of 0.088 m3, a sample of gas is held at a constant pressure of 3.4 × 104 Pa by heating. Then, while a constant volume is maintained, the gas is cooled back to its initial temperature. The work that the gas does on the environment ...
*June 21, 2012 by Kaley*

**Chemistry**

Assume tat you have a sample of a gas in a cylinder with a movable piston at constant pressure. Determine the volume of the gas if the absolute temperature is decreased by twenty-five percent.
*August 28, 2011 by Devin Boutte*

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