3. Mr. Brown is such a s _____n teacher that we are afraid to talk to him and he seldom smiles at us
5. Babies cry usually because their p l needs are not satisfied. For example, they are hungry or the
一、一絕熱容器總容積為 4 m3 ,初始時被一隔版平均分成 A 和 B 區。初始 A 區內空氣狀態為 1.0 MPa、600 K,B 區是真空。當隔板移除後,空氣充滿容器。決定最終平衡時的空氣狀態(T
二、一可逆轉熱磊可在夏天充當冷氣,在冬天用作暖屋用。屋內經年維持 24℃的恆溫。假定夏天時室外平均溫度為 32℃,冬天的室外平均溫度為 4℃。而每 1℃室內、外的溫差會有 5kW 的熱獲得或熱損失。試
7.Nowadays, it’s not u n to hear that college students have part-time jobs. It’s said that about 90%
三、10 kg 的空氣裝在活塞–汽缸裝置中,開始時壓力為 500 kPa,溫度為 20 ℃,讓空氣等溫膨脹直至壓力降為 100 kPa。在此變化過程中,試解:(20 分)【題組】 ⑴做功為多少(kJ)