Problem 19.21 8 of 16 Constants I Periodic Table High-altitude mountain climbers do not eat snow, but always melt Part A first with a stove. To see why, calculate the energy absorbed from your body if you eat 0.80 kg of -12 °C snow which your body warms to body temperature of 37°C. Express your answer to two significant figures and include the appropriate units. HA Value Units Submit Request Answer Part B Calculate the energy absorbed from your body if you melt 0.80 kg of -12 °C snow using a stove and drink the resulting 0.80 kg of water at 2 °C, which your body has to warm to 37°C. Express your answer to two significant figures and include the appropriate units. HẢ Value Units

Problem 19.21 8 of 16 Constants I Periodic Table High-altitude mountain climbers do not eat snow, but always melt Part A first with a stove. To see why, calculate the energy absorbed from your body if you eat 0.80 kg of -12 °C snow which your body warms to body temperature of 37°C. Express your answer to two significant figures and include the appropriate units. HA Value Units Submit Request Answer Part B Calculate the energy absorbed from your body if you melt 0.80 kg of -12 °C snow using a stove and drink the resulting 0.80 kg of water at 2 °C, which your body has to warm to 37°C. Express your answer to two significant figures and include the appropriate units. HẢ Value Units

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)...

See similar textbooks

Similar questions

Learning Goal: To understand the meaning and the basic applications of pV diagrams for an ideal gas. As you know, the parameters of an ideal gas are described by the equation PV = nRT, where p is the pressure of the gas, V is the volume of the gas, n is the number of moles, R is the universal gas constant, and I is the absolute temperature of the gas. It follows that, for a portion of an ideal gas, Figure 3po 2po Po pV T 51 Vo = constant. 6 2V 3V V Submit ✓ Correct No work is done during a process, if the gas does not experience a change in volume. The absolute value of the work done by the gas during a cycle (a process in which the gas returns to its original state) equals the area of the loop corresponding to the cycle. One must be careful, though, in judging whether the work done by the gas is positive or negative. One way to determine the total work is to calculate directly the work done by the gas during each step for the cycle and then add the results with their respective…
4. Which of the following statements does not correctly represent the second law of thermodynamics? a. Perpetual motion machines do not exist. b. Heat flows spontaneously from high temperature regions to low temperature regions. c. The entropy of the universe tends to decrease. d. Heat cannot be converted to work with 100% efficiency. e. Transporting heat from low temperature regions to high temperature regions requires the application of external work.
12 of 13 A gas in a cylinder expands from a volume of 0.100 m³ to 0.330 m . Heat flows into the gas just rapidly enough to keep the pressure constant at 1.90x105 Pa during the expansion. The total heat added is 1.20x105 J . For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Thermodynamics of boiling water. Part A Find the work done by the gas. Express your answer in joules. ? W J Submit Request Answer Part B Find the change in internal energy of the gas.
Based on the given pV diagram, match the answers with questions. the temperature for process 0→7 the temperature for process 0→6 the temperature for process 0→1 A. stays the same B. decreases C. not enough information D. increases
QUESTION 16 Which of the following statements is not true according to kinetic theory? a. Electrical attractions and repulsions between the molecules must be accounted for in the total energy of the ideal gas. b. The energy of an ideal gas only depends on the kinetic energy of the gas. C. The average energy of a molecule in an ideal gas is evenly distributed between the different degrees of freedom of the molecule. d. The molecules in an ideal gas undergo elastic collisions. e. The molecules in an ideal gas only interact during collisions.