6. The ratio of specific heat at constant pressure (Cp) and specific heat at constant volume (Cv) is a) equal to one b) less than one c) greater than one d) none of these 7. There is no change in internal energy in an isothermal process. a) True b) False 8. The value of specific heat at constant pressure (ep) is . that of at constant volume (cv). a) less than b) equal to c) more than 9. In the first law of thermodynamics, the total energy of the system remains constant. a) True b) False. 10.The absolute zero temperature is taken as a) -273°C b) 273°C c) 237°C d) -237°C 11.The measurement of a thermodynamic property known as temperature is based on a) Zeroth law of thermodynamics b) First law of thermodynamics c) Second law of thermodynamics d) none of these 12. The sequence of processes that eventually returns the working substance to its original state is known as a) Event

6. The ratio of specific heat at constant pressure (Cp) and specific heat at constant volume (Cv) is a) equal to one b) less than one c) greater than one d) none of these 7. There is no change in internal energy in an isothermal process. a) True b) False 8. The value of specific heat at constant pressure (ep) is . that of at constant volume (cv). a) less than b) equal to c) more than 9. In the first law of thermodynamics, the total energy of the system remains constant. a) True b) False. 10.The absolute zero temperature is taken as a) -273°C b) 273°C c) 237°C d) -237°C 11.The measurement of a thermodynamic property known as temperature is based on a) Zeroth law of thermodynamics b) First law of thermodynamics c) Second law of thermodynamics d) none of these 12. The sequence of processes that eventually returns the working substance to its original state is known as a) Event

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

4. Two kilograms of air at a pressure of 2,000 kPa and temperature of 25 °C is heated at constant volume to a final pressure of 2,235 kPa. Compute for the a. change in internal energy b. change in enthalpy c. change in entropy d. heat transferred e. non-flow work f. flow work
4) A ground source heat pump heats a building by extracting heat from the ground and pumping it into the building. Define: Qc = heat extracted from the ground, Qn= heat pumped into the building, W = electric energy used by the heat pump, Tc= temperature of the ground, T = temperature of building (Qc, Qn, and W are positive by definition). Assume Tr > Tc. a) Draw a diagram showing energy flow in and out of the heat pump. b) Write a general expression for the change AS in the entropy of the "universe", that is the heat pump plus the cold and hot reservoirs, in terms of the quantities defined above. Now assume ideal (reversible) operation, and take Te= 10 °C and Tp= 20 °C. What is the coefficient of performance (ČOP) of the heat pump? By what factor would this change if we had Tc = 0 °C instead?
5. An air conditioner removes heat steadily from a house at a rate of 750 k]/min while drawing electric power at a rate of 6 kW. Determine (a) the COP of this air conditioner and (b) the rate of heat transfer to the outside air. show free-body diagram
DATA: LATENT HEAT OF FUSION MASS of EMPTY CALORIMTER (g) 48.1g MASS of CALORIMETER with WATER (g) 181.5g MASS of CALORIMETER with WATER AND ICE (g) 211.9g INTIAL TEMPERATURE of Water (To): 820C INTIAL TEMPERATURE of ICE(To): OoC FINAL TEMPERATURE(TF): 51oC
Please answer all
3. When temperature is a function of time and distance, it means that the heat transfer by conduction is in unsteady- state and in one direction.
10-
3. Heat in the amount of 7.5 kJ is added to a closed system while its internal energy decreases by 12 kJ. a) How much energy is transferred as work? b) For a process causing the same change of state but for which the work is zero, how much heat is transferred?
5. Referring to the PV diagram on the right, determine the total work done by this thermodynamic process. Describe the process taking place p(atm) 0.60 from a to b, and then from b to c. ANSWERS:| 0.40 0.20 a V 2.0 4.0 6.0