Thermodynamics-I Set 5

760 mm Hg ✘ zero mm Hg ✘ 735.6 mm Hg ✘ 1 mm Hg ✔ 100mm Hg. ✔

conservation of mass ✘ conservation of energy ✘ conservation of momentum ✘ conservation of heat ✔ conservation of temperature. ✔

conservation of heat ✘ conservation of work ✘ conversion of heat into work ✘ conversion fo work into heat ✔ conservation of mass. ✔

a thermodynamic machine ✘ a non-thermodynamic machine ✘ a hypothetical machine ✘ a hypothetical machine whose opera-tion would violate the laws of thermodynamics ✔ an inefficient machine. ✔

heat can’t be transferred from low temperature source to high temperature source ✘ heat can be transferred for low temperature to high temperature source by using refrigeration cycle. ✘ heat can be transferred from low temperature to high temperature source if COP of process is more than unity ✘ heat can’t be transferred from low temperature to high temperature source without the aid of external energy ✔ all of the above. ✔

watts/°K ✘ dynes/°C ✘ ergscm/°K ✘ erg/°K ✔ none of the above. ✔

fine weather ✘ rains ✘ storm ✘ cold wave ✔ hot wave. ✔

specific heat ✘ quantity of heat ✘ thermal capacity ✘ entropy ✔ work. ✔

760 mm Hg ✘ zero mm Hg ✘ 735.6 mm Hg ✘ 1 mm Hg ✔ l00 mm Hg. ✔

1 kgf/cnr2 ✘ 1.033 kgf/cm2 ✘ 0 kgf/cm2 ✘ 1.0197 kgf/cm2 ✔ 100 kgf/cm2. ✔