A gas bottle contains 4.15×1023 Nitrogen molecules at a temperature of 354.0 K. What is the thermal energy of the gas? (You might need to know Boltzmann's constant: kg = 1.38x10-23 J/K.) 3041 J Submit Answer Incorrect. Tries 1/20 Previous Tries How much energy is stored in ONE degree of freedom for the whole system? 1.01x103 J are correct. Your receipt no. is 159-4121 O Previous Tries What is the average energy of a single molecule? 7.33x10^-21 J Submit Answer Incorrect. Tries 1/20 Previous Tries On average how much energy is stored by ONE degree of freedom for ONE single molecule? 2.44x10-21 j are correct. Your receipt no. is 159-1592 0 Previous Tries

A gas bottle contains 4.15×1023 Nitrogen molecules at a temperature of 354.0 K. What is the thermal energy of the gas? (You might need to know Boltzmann's constant: kg = 1.38x10-23 J/K.) 3041 J Submit Answer Incorrect. Tries 1/20 Previous Tries How much energy is stored in ONE degree of freedom for the whole system? 1.01x103 J are correct. Your receipt no. is 159-4121 O Previous Tries What is the average energy of a single molecule? 7.33x10^-21 J Submit Answer Incorrect. Tries 1/20 Previous Tries On average how much energy is stored by ONE degree of freedom for ONE single molecule? 2.44x10-21 j are correct. Your receipt no. is 159-1592 0 Previous Tries

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Q1: An electric heater contains 40 liter of water initially at a mean temperature of 15°C. 0.25 kWh is supplied to the water by the heater. Assuming no heat losses, what is the final mean temperature of the water? Note that 4185 J taking to rise the temperature of 1 liter of water 1°C.
A cylinder in a car engine takes V1 = 0.045 m3 of air into the chamber at 300 C and at 1 atm pressure. The piston then compresses the air to one-ninth (V1/9) of the original volume and to 20 times (20 P1 ). A. What would be the new temperature if the pressure was constant?
Through questionable means, you have acquired 5.10 m3 of glycerin. In an attempt to sell it, you transport it outside under the hot Sun, where it warms up from 68.8 °F to 88.0 °F. By how much does its volume increase? Express your answer in m3 to three decimal place precision.
A 72° object is placed into a 3272º furnace and it takes 10 minutes for it to reach 1000 (Recall, T = TR + D, ekt) a. Find the equation that models the temperature at a given time. b. How long does it take for the object to reach 2552°?
Heating substances in the sun: The following table shows the temperature after 10.0 grams of four different substances have been in direct sunlight for up to 60 minutes. Time (minutes) O (initial) 15.0 min 30.0 min 45.0 min 60.0 min Temperature (°C) 70 60 50 40 PART I: Experiment 1. Create a line graph for each substance on graph below. (You can use Excel or similar program) Label the substances. Temperature vs Heating Time 30 20 0 Air (°C) 25°C 28.9°C 32.5°C 36.2°C 40°C 10 Water (°C) 25°C 26.2°C 27.5°C 28.8°C 30°C 20 Time (minutes) 30 40 Sand (C) 25°C 30°C 50 35°C 40°C 45°C 60 Metal (°C) 25°C 35°C 45°C 55°C 65°C
Q1. a) Choose which quantity/unit is fundamental, or derived quantity/unit by ticking (√ ). Sl No Quantity Fundamental Quantity Derived Quantity Fundamental Unit Derived Unit Example m/s √ 1 volume 2 J/kg 3 viscosity 4 N/m 5 Surface tension 6 Angular velocity 7 s-2 8 Heat flux density 9 V/m 10 Thermal conductivity
A mass of steam at 120°C is added to 2kg of ice at 0°C to yield water at 20°C. What is the total amount of energy in Joules is lost by the steam? ROUND OFF YOUR ANSWER IN WHOLE NUMBER. DO NOT WRITE THE UNIT IN YOUR FINAL ANSWER. L = 3.34x10²; Lv 2.26x106 Cwater = : 4186 kg.C; Csteam = 2010- kg.C =
The Statue of Liberty in New York City is approximately 305 ft305 ft tall. How many U.S. dimes would be in a stack of the same height? Each dime is 1.35 mm1.35 mm thick. number of dimes: Each dime has a mass of 2.268 g.2.268 g. How much would the stack of dimes from the previous question weigh? mass: g What is the value, in dollars, of the same stack of dimes? value: dollars The 2017 U.S. gross domestic product (GDP) was valued at 19,390,604,000 dollars.19,390,604,000 dollars. How many Statue of Liberty‑height stacks of dimes are needed to match the GDP in value? number of stacks:
1. a. Derive the following expression for the fractional change in the speed of sound (dv/v) dv 1 dT related to a small change in temperature (dT): Start with the expression for the 2 T YRT M speed of sound related to temperature: v= where y is the ratio of heat capacities (a constant), R is the gas constant and M is the molar mass of the substance. Show enough steps (and words!) so that I can tell what you're doing. b. Use the red equation above to determine what the speed of sound in air at 21.0° C is, given that the speed of sound at 20.0° C is 344 m/s. Check your answer against any reference that has the speed of sound in air at different temperatures. Show your setup, and remember that the speed should not be terribly different! Hint: What temperature units should you be using?
A hot tub with a surface area of 28 ft2 is filled with water to a depth of 29 in . Hint: volume is calculated as area × height (A × h). A) What is the volume of water in the tub, in liters? Express your answer to two significant figures and include the appropriate units. B) How many kilojoules are needed to heat the water from 59∘F to 103 ∘F? Express your answer to two significant figures and include the appropriate units. C) If the hot-tub heater provides 5900 kJ/min, how long, in hours, will it take to heat the water in the hot tub from 59∘F to 103∘F? Express your answer to two significant figures and include the appropriate units.
The enthalpy of 36 g of water vapor increases by 1830 J when its temperature increases from 150C to 175C. Assume that water vapor is an ideal gas. 1. What is the molar specific heat at constant pressure in SI units for water vapor? 2. By how much did the water vapor’s thermal energy increase? Express your answer with the appropriate units.