(1)结合图推导出该汽油机的热机效率;
(2)求满箱汽油完全燃烧放出的热量;
(3)汽油机用循环流动的水冷却汽缸,若流入汽缸周围的冷却水温度是20℃,从汽缸周围流出的冷却水温度是80℃,求满箱汽油使用完的时间内流过汽缸周围的冷却水的质量。(结果保留整数)
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2