please answer part D only 4. The heat capacity of liquid water is 4190 J/(kg K). One mole of water has mass 0.018 kg. a. What is the molar heat capacity of water [in J/(mol K)]? b. Using the equipartition theorem, roughly how many active modes does liquid water have to store thermal energy? c. Do you expect a solid metal to have more or fewer degrees of freedom available (relative to liquid water) to store thermal energy? d. If you want to create a coolant, a substance placed in thermal contact with a hot object in order to reduce the hot object's temperature as efficiently as possible, would you use an substance with very many or few available degrees of freedom? Briefly explain your reasoning.

please answer part D only 4. The heat capacity of liquid water is 4190 J/(kg K). One mole of water has mass 0.018 kg. a. What is the molar heat capacity of water [in J/(mol K)]? b. Using the equipartition theorem, roughly how many active modes does liquid water have to store thermal energy? c. Do you expect a solid metal to have more or fewer degrees of freedom available (relative to liquid water) to store thermal energy? d. If you want to create a coolant, a substance placed in thermal contact with a hot object in order to reduce the hot object's temperature as efficiently as possible, would you use an substance with very many or few available degrees of freedom? Briefly explain your reasoning.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter14: Heat And Heat Transfer Methods

Section: Chapter Questions

Problem 62PE: The Sun radiates like a perfect black body with an emissivity of exactly 1. (a) Calculate the...

See similar textbooks

Similar questions

B. If the spring constant is k = 2.2 N/m, can you find the mass of the cart? If you can do it, give the answer here. If you can't, put 0.m = _______ kg The simple mass on a spring is the basis for our description of almost any oscillation. Lets consider the vibrational states of a simple diatomic molecule, say N2. We will model it as two identical masses connected by a spring as shown in the figure at the top right.This is a little different from the cart on a spring since there is no wall -- both of the atoms are moving. But if we only look at oscillations of the molecule where the center of mass is not moving, the atoms are moving equally and oppositely. When one is going left, the other goes an equal amount to the right and vice versa. This is like two carts attached to a wall and oscillating equally and oppositely as shown in the lower picture. The only difference is the way we treat the spring. When each atom moves a distance x, the spring between the atoms actually stretches…
In the deep space between galaxies, the number density of atoms is as low as 106 atoms/m3, and the temperature is a frigid 2.7 K. a. What is the pressure, in pascals, in the region between galaxies? b. What volume, in cubic meters, is occupied by 4.5 mol of gas? c. If this volume is a cube, what is the length of one of its edges, in kilometers?
In the deep space between galaxies, the number density of atoms is as low as 106 atoms/m3, and the temperature is a frigid 2.7 K. a)What is the pressure, in pascals, in the region between galaxies? b)What volume, in cubic meters, is occupied by 1.5 mol of gas? c)If this volume is a cube, what is the length of one of its edges, in kilometers?
A silicon wafer is oxidized in dry O2 at 1100 oC for 1 hour. (a) What is the thickness of the oxide grown? (b) How much additional time is required to grow 0.6 μm more oxide in wet O2 at 1200 oC?
(a) What is the minimum donor doping required to convert silicon into a conductor based on the deﬁnitions in Table ? (b) What is the minimum acceptor doping required to convert silicon into a conductor?
In the deep space between galaxies, the number density of atoms is as low as 106 atoms/m3, and the temperature is a frigid 2.7 K. A) What is the pressure, in pascals, in the region between galaxies? B)What volume, in cubic meters, is occupied by 1.5 mol of gas? C)
The Fermi-Dirac statistic describes the probability of occupation of an energy state E, as a function of temperature and of the parameter Ef, the Fermi energy.a) What is the physical interpretation for the result obtained when E = Ef?b) Under which conditions of temperature and position of the Fermi level, Ef, can the Fermi-Dirac statistic be written as a simple exponential? Justify your answer.
A constant-volume gas thermometer hasa pressure of 80.3 kPa at -10.0 °C and a pressure of 86.4 kPa at 10.0 °C. (a) At what temperature does the pressure of this systemextrapolate to zero? (b) What are the pressures of the gas at thefreezing and boiling points of water? (c) In general terms, howwould your answers to parts (a) and (b) change if a different constant-volume gas thermometer is used? Explain.
In the deep space between galaxies, the density of atoms is 1 million atoms per m3 (i.e. there are 1 million atoms in a cubic meter), and the temperature is 3 K. (a) What is the pressure in space? (b) What volume (in cubic meters) is occupied by 100 moles of space gas? (c) If this volume is a cube, what is the length of one its sides in kilometers?
In the deep space between galaxies, the density of molecules (which are mostly single atoms) can be as low as 106 atoms/m3, and the temperature is a frigid 2.7 K. What is the pressure? (b) What volume (in m3 ) is occupied by 1 mol of gas? (c) If this volume is a cube, what is the length of its sides in kilometers?
a) What is the specific heat capacity of water?_________________________b) Calculate the thermal energy (Q) transferred to a litre of water when you are using a domestickettle to boil the water, given the following equation:? = ??∆?Equation 1and assuming the following: Initial Temperature, Ti = 20 °C, Final temperature, Tf = 100 °C, 1 litre of water ≈ 1kg of water.Show all your calculations.____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________c) Comment on the assumptions and approximations that you have made.
Hi, could I get some help with this macro-connection physics problem involving the Ideal Gas Law? The set up is: What is the average volume in nm3 (cubic nanometers) taken up by molecules of an ideal gas at room temperature (taken as 300 K), and 1 atm of pressure or 101325 N/m2 to 4 digits of precision if kB = 1.38e-23 J/K and 1 nm = 10-9 m? Thank you.