A fresh hot cup of coffee is 84°C and the room temperature is 20.3°C.  After 5 minutes, the temperature of the coffee is 72.7°C.  Solve for the constant of proportionality, k.

Q: Neon is expanded isentropically from 2000 kPa and 770 K until the temperature drops to 275 K. What…

A: See below

Q: Either give an exact answer, or make sure you include at least 4 significant digits on your answer.…

A: The objective of the question is to find the rate at which the volume of an ideal gas is changing…

Q: If a 2 m3 of gas initially at STP is placed under a pressure of 4 atm, the temperature of the gas…

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Q: Charles’ law states that for a fixed mass of gas under constant pressure, the volume V and…

A: Charle’s law

Q: The average kinetic energy of the molecules in a gas sample depends only on the temperature, ?.…

A: Given data as per question R   =  8.314 J/mol-k T    =    401 K

Q: A bottle of volume V = 0.15 m³ contains helium gas (a monatomic gas) at a pressure p = 722,266 Pa…

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Q: The temperature in a room is 24.1 °C. Compute the average kinetic energy of an oxygen molecule in…

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Q: The free energy of an electrochemical cell is given by the equation: AG = -nFE Where: AG = Gibbs…

A: The Gibbs free energy of an electrochemical cell is given by ΔG = - nFE   The ideal gas equation is…

Q: An employee is monitoring the internal temperature of a cryogenic liquid storage tank. Ideally the…

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Q: One mole of oxygen gas is at a pressure of 6 atm and a temperature of 27 °C. (a) If the gas is…

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Q: n = 3.5 moles of an ideal gas are pumped into a chamber of volume V = 0.056 m3.  The initial…

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Q: Using the same sample of gas (P = 325 torr ,T = 14 °C), we wish to change the pressure to 3250 torr…

A: As per guidelines we are suppose to do only one question from multiple questions, please post other…

Q: Suppose that the average speed (vm) of carbon dioxide molecules (molar mass 44.0 g/mol) in a flame…

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Q: An apartment has the dimensions 14 m x 7 m x 5 m. The temperature is 30°C and the relative humidity…

A: Convert the temperature from degree Celsius to Kelvin. The saturation pressure of water at 30°C is…

Q: A metal bar in a low temperature physics experiment with mass m = 89 kg had its temperature raised…

A:

Q: The volume of an automobile tire is 2.5x10^-2m3. The pressure of the air in the tire is 3.3 atm and…

A: Given data *The volume of an automobile tire is V = 2.5 × 10-2 m3 *The pressure of the air in the…

Q: What is the volume now?  Calculate to 2 decimals.

A: Given data: The initial volume of gas is: V = 3 m3 = 3000 lit. The final temperature of gas is: Tf =…

Q: You are using a 680 W microwave to heat 700 ml of olive oil. If the initial temperature of the oil…

A: Microwave radiation causes rotational transitions in the molecules. By absorbing microwave…

Q: A balloon has a radius of 0.47 m when inflated to an absolute pressure of 400 kPa at a temperature…

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Q: 1) The Ideal Gas Law, PV = RT, relates the pressure (P, in pascals), temperature (7, in Kelvin), and…

A: As per our guidelines, we are instructed to answer only three sub-parts per session. Kindly post the…

Q: If a 5 m3 of gas initially at STP is placed under a pressure of 2 atm, the temperature of the gas…

A: New Volume V = 2.50 m3   Like it...

Q: For an ideal gas in constant volume if you double the temperature ( T2= 2 T1), what is the new…

A:

Q: In Fig. 1 a, four identical rectangular rods of metal are welded end to end, with a temperature of…

A: The heat transfer mechanism is conduction. Which is defined as,

Q: A balloon containing 2 moles of an ideal gas at 428.94 K. Another 1 mole of the ideal gas is added…

A: Given data:   Initially number of moles (n1) = 2 mol Initial temperature (T1) = 428.94 K Finally…

Q: If 6.07 moles of an ideal gas has a pressure of 8.00 x 10 Pa and a volume of 0.113 m³, what is the…

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Q: A gas is in a sealed container. The gas pressure is tripled and the temperature is doubled. By what…

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Q: The temperature difference between the inside and the outside of a house on a cold vwinter day is…

A: part A) temperature  difference =33 f   F=9/5*C +32 C=(F- 32)*5/9 temperature  difference in Celsius…

Q: The pressure of 1 mole of an ideal gas is increasing at a rate of 0.06 kPa/s and the temperature is…

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Q: A room has dimensions of 7.2 m by 5.9 m by 3.2 m. The pressure inside the room is 90,000 Pa and the…

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Q: If a 4 m3 of gas initially at STP is placed under a pressure of 3 atm, the temperature of the gas…

A:

Q: Large helium-filled balloons are used to lift scientific equipment to high altitudes. (a) What is…

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Q: If a 4 m3 of gas initially at STP is placed under a pressure of 3 atm, the temperature of the gas…

A:

Q: A sample of an ideal gas is in a tank of constant volume. The sample absorbs heat energy so that its…

A: The formula vrms = √(3kbT/m)   v2/v1 = √(3kbT2/m)/√(3kbT1/m)  constant term will cancel out, so...…

Q: A container holds 76.5 liters of Oxygen at 266.2K and a pressure of 3.48 atmospheres.  How much heat…

A:

Q: - Your answer is partially correct. The temperature near the surface of the earth is 297 K. A xenon…

A: 1 amu = 1.67 × 10-27 kg Molar mass xenon = 131.29 g                                   = 0.13129…

Q: n = 3.9 moles of an ideal gas are pumped into a chamber of volume V = 0.125 m3.  Part (a)  The…

A: Given data: The number of moles is n=3.9 moles. The volume of chamber is V=0.125 m3. The initial…

Q: A gas bottle contains 4.64x10 Hydrogen molecules at a temperature of 384.0 K. What is the thermal…

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Q: what is the temperature at state D, in Kevin?

A: As per instruction answer is      73.25   (though it have four significant digits)   Explanation and…

Q: The volume of an automobile tire is 2.5 × 10−2m3 . the pressure of the air in the tire is  3 atm and…

A: According to ideal gas law -  Where  P = Pressure  V = Volume  n = Number of moles  T = Temperature…

Q: An ideal gas in a 1.25​-gallon​[gal] container is at a temperature of 135 degrees Celsius ​[°​C] and…

A: Given:- The volume of the ideal gas is  V = 1.25 gallon = 4.73 x 10-3 m3 The temperature of the…

Q: Normal body temperature for humans is 98.6 °F. What is the corresponding temperature in (a) degrees…

A: Given data: Temperature for humans is, T=98.6∘F.

Q: A container of gas holds 1.04 moles of neon gas. If the volume of the container is 10.1 liters and…

A: Given:  number of moles, n = 1.04  Volume of gas, V = 10.1 litre = 10.1 x 10-3 m3 Pressure of the…

Q: A sphere made of an unknown metal of diameter 122 cm at a temperature T1 Kelvin radiates a certain…

A: A sphere made of an unknown metal of diameter 122 cm at a temperature T1 Kelvin radiates a certain…

Q: Helium atoms have a mass of 4u and oxygen molecules have a mass of 32u, where u is defined as an…

A: The translational kinetic energy of a gas is given by Hence, average translational kinetic energy…

Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.