11th Class Physics MCQS Thermodynamics Online Test 5

heat-is-form-of-3-a_-_energy,if-heat-engine-absorbs-400-j-and-rejects-200-j-heat-energy-2-c-its-efficiency-will-be-3-a_-_50-25,if-heat-is-added-to-a-system-2-c-then-its-entropy-will-3-a_-_increases-and-positive,if-internal-energy-decreases-by-300-j-and-120-j-of-work-is-done-on-the-system-then-heat-will-be-3-a_-_420-j,if-one-mole-of-an-ideal-gas-is-heated-at-constant-pressure-3-b-then-3-a_-_5-c-28-q-p-3-dc-v-5-c-delta-t-5-c-29,if-one-mole-of-an-ideal-gas-is-heated-at-constant-volume-then-3-a_-_5-c-28-5-c-delta-u-3-dc-v-5-c-delta-t-5-c-29,if-p-3-d-pressure-3-b-v-3-d-volume-of-a-gas-2-c-26-nbsp-3-bthen-26-nbsp-3-b-5-c-28-p-5-c-delta-v-5-c-29-26-nbsp-3-brepresents-3-a_-_work,if-the-temperature-of-a-system-is-kept-constant-2-c-the-process-is-called_-_isothermal-process,if-the-temperature-of-sink-is-absolute-zero-then-the-efficiency-of-heat-engine-engine-should-be-3-a_-_100-25,if-the-temperature-of-the-sink-is-decreased-2-c-the-efficiency-of-a-carnot-engine-3-a_-_increases,in-case-of-adiabatic-process-1st-law-of-thermodynamics-is-written-as-3-a_-_5-c-28-w-5-c-2-c-3-d-5-c-delta-u-5-c-29,in-case-of-adiabatic-process-1st-law-of-thermodynamics-is-written-as-3-a_-_w-3-d-e-2-88-86-u,in-reversible-process-the-entropy-of-system_-_become-zero,in-thermodynamics-system-2-c-internal-energy-decreases-by-100-j-and-100-j-of-work-done-on-the-system-then-heat-lost-will-be-3-a_-_zero,in-which-case-2-c-the-work-done-is-zero-3-a_-_constant-volume,in-which-process-entropy-of-the-system-remains-constant-3-f_-_reversible,let-22-m-22-be-mass-2-c-22-c-22-26-nbsp-3-bbe-the-specific-heat-and-22-e-2-88-86-t-22-be-the-26-nbsp-3-bchange-26-nbsp-3-b-of-temperature-2-c-then-the-heat-gained-or-lost-e-2-88-86-q-is-calculated-by-3-a_-_e-2-88-86-26-nbsp-3-bq-3-d-mc-26-nbsp-3-b-e-2-88-86-26-nbsp-3-bt,net-change-in-entropy-of-a-system-after-one-complete-carnot-cycle-is-3-a_-_zero,no-entropy-change-takes-place-in-3-a_-_isothermal-process,no-spark-plug-is-needed-in-the-3-a_-_diesel-engine