#13 Alternative Energy measures Noting that one Mole contains Avogadro's number (6.02 × 1023) of items, what is 1.00 kcal/mol (1.00 kilo-calories per mole) in Joules? It may be be useful to recall that 1 calorie is 4.18 Joules. A. 3.12 × 10-22 J В. 6.94 х 10-21 C. 2.13 × 10-20 С. 1.60 х 10-19 J J J

#13 Alternative Energy measures Noting that one Mole contains Avogadro's number (6.02 × 1023) of items, what is 1.00 kcal/mol (1.00 kilo-calories per mole) in Joules? It may be be useful to recall that 1 calorie is 4.18 Joules. A. 3.12 × 10-22 J В. 6.94 х 10-21 C. 2.13 × 10-20 С. 1.60 х 10-19 J J J

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter3: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 17CQ: There is no change in the internal of an ideal gas undergoing an isothermal process since the...

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(a) If tossing 100 coins, how many ways (microstates) are there to get me three most likely macro states of 49 heads and 51 tails, 50 heads and 50 tails, and 51 heads and 49 tails? (b) What percent of the total possibilities is this? (Consult Table 15.4.)
(a) It is difficult to extinguish a fire on a crude oil tanker, because each liter of crude oil releases 2.80107J of energy when burned. To illustrate this difficulty, calculate the number of liters of water that must be expended to absorb the energy released by burning 1.00 L of crude oil, it the water has its temperature raised from 20.0C to 100C, it boils, and the resulting steam is raised to 300C. (b) Discuss additional complications caused by the fact that crude oil has a smaller density than water.
Review. A house has well-insulated walls. It contains a volume of 100 m3 of air at 300 K. (a) Calculate the energy required to increase the temperature of this diatomic ideal gas by 1.00C. (b) What If? If all this energy could be used to lift an object of mass m through a height of 2.00 m, what is the value of m?
What does it mean to say that two systems are in thermal equilibrium?
Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and form for a total of 20 rubs, at a distance of 750 cm per rub, and with an average frictional force of 40.0 N, what is the temperature increase? The mass of tissues warmed is only 0.100 kg, mostly in the palms and fingers.
Can improved engineering and materials be employed in heat engines to reduce heat transfer into the environment? Can they eliminate heat transfer into the environment entirely?
What percent of the time will you get something in the range from 60 heads and 40 tails through 40 heads and 60 tails when tossing 100 coins? The total number of microstates in that range is 1.221030 . (Consult Table 15.4.)
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(a) A woman climbing the Washington Monument metabolizes 6.00102kJ of food energy. If her efficiency is 18.0%, how much heat transfer occurs to the environment to keep her temperature constant? (b) Discuss the amount of heat transfer found in (a). Is it consistent with the fact that you quickly warm up when exercising?