Methanol One question per day Heat exchangers 2016.01.26
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Methanol: One question per day – Basic chemical engineering knowledge, heat exchangers. January 26, 2016. Reply to see the answers! Welcome to participate actively! 1. The temperature difference between the two fluids in a fixed-tube-sheet heat exchanger should not exceed ( )°C. (A) 40–50 (B) 50–60 (C) 60–70 (D) 70–80 2. When substances exchange heat, which statement regarding heat is correct? ( ) (A) No phase change occurs; only the temperature changes. This type of heat is called sensible heat. (B) No phase change occurs; only the temperature changes. This type of heat is called latent heat. (C) A phase change takes place, and this heat is called sensible heat. (D) The heat released by the substance that supplies the heat is called sensible heat. 1、C 2、A
1. (C) 60–70 ------- 2. (A) No phase change occurs; only a change in temperature takes place, and this type of heat is called sensible heat
(C) 60～70 (A) No phase change occurs; only a temperature change takes place, and this type of heat is called sensible heat
1. The temperature difference between the two fluids in a fixed-tube-sheet heat exchanger should not exceed (C) °C. (A) 40–50 (B) 50–60 (C) 60–70 (D) 70–80 2. When substances exchange heat, the correct statement regarding heat is (A). (A) No phase change occurs; only the temperature changes. This type of heat is called sensible heat. (B) No phase change occurs; only the temperature changes. This type of heat is called latent heat. (C) A phase change takes place, and this heat is called sensible heat. (D) The heat released by the substance that supplies the heat is called sensible heat
A A ~~~~~~~~~~~~~~~~~
1. The temperature difference between the two fluids in a fixed-tube-sheet heat exchanger should not exceed (C) °C. (A) 40–50 (B) 50–60 (C) 60–70 (D) 70–80 2. When substances exchange heat, the correct statement regarding heat is (A). (A) No phase change occurs; only the temperature changes. This type of heat is called sensible heat. (B) No phase change occurs; only the temperature changes. This type of heat is called latent heat. (C) A phase change takes place, and this heat is called sensible heat. (D) The heat released by the substance that supplies the heat is called sensible heat
In a fixed-tube-sheet heat exchanger, the temperature difference between the two fluids should not exceed (C) °C. (A) 40–50 (B) 50–60 (C) 60–70 (D) 70–80 2. When substances exchange heat, the correct statement regarding heat is (A). (A) No phase change occurs; only the temperature changes. This type of heat is called sensible heat. (B) No phase change occurs; only the temperature changes. This type of heat is called latent heat. (C) A phase change takes place, and this heat is called sensible heat. (D) The heat released by the substance that supplies the heat is called sensible heat
1. The temperature difference between the two fluids in a fixed-tube-sheet heat exchanger should not exceed (C) °C. (A) 40–50 (B) 50–60 (C) 60–70 (D) 70–80 2. When substances exchange heat, the correct statement regarding heat is (A). (A) No phase change occurs; only the temperature changes. This type of heat is called sensible heat. (B) No phase change occurs; only the temperature changes. This type of heat is called latent heat. (C) A phase change takes place, and this heat is called sensible heat. (D) The heat released by the substance that supplies the heat is called sensible heat