Methanol One question per day Basic chemical engineering knowledge Heat exchangers 2016.01.29
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Methanol: One question per day – Basic chemical engineering knowledge, heat exchangers. January 29, 2016. Reply to see the answers! Welcome to participate actively! 1. The basic equation for heat transfer is ( ). (A) Q = G(I1 – I2) (B) Q = Gr (C) Q = GCPt (D) Q = KAΔt. Given that the specific heat of water at 20 °C is 4.183 KJ/kg·°C, the amount of heat released when 1 kg of water at 30 °C is cooled to 10 °C is ( ) KJ. (A) 4.183 (B) 41.83 (C) 83.66 (D) 167.323. The basic methods of heat transfer include ( ). (A) Conduction and convection (B) Conduction and radiation (C) Convection and radiation (D) Conduction, convection, and radiation D C D
1. The basic equation for heat transfer is (D). (A) Q = G(I1 – I2) (B) Q = Gr (C) Q = GCPt (D) Q = KAΔtm. 2. Given that the specific heat of water at 20 °C is 4.183 KJ/kg·°C, the amount of heat released when 1 kg of water at 30 °C is cooled to 10 °C is (C) KJ. (A) 4. 183 (B) 41. 83 (C) 83. 66 (D) 167.32 3. The basic modes of heat transfer include (D). (A) Conduction and convection (B) Conduction and radiation (C) Convection and radiation (D) Conduction, convection, and radiation
1. The basic equation for heat transfer is ( ). (D) Q = KAΔtm2. Given that the specific heat of water at 20 °C is 4.183 KJ/kg·°C, the amount of heat released when 1 kg of water at 30 °C is cooled to 10 °C is ( ) KJ. (C) 83. 663. The basic methods of heat transfer include ( ). (D) Conduction, convection, and radiation
1.D 2.A 3.D
1. The basic equation for heat transfer is ((D) Q = KAΔtm). 2. Given that the specific heat of water at 20 °C is 4.183 KJ/kg·°C, the heat released when 1 kg of water at 30 °C is cooled to 10 °C is (C) 83.66 KJ. 3. The basic modes of heat transfer include ((D) conduction, convection, and radiation)).
1. The basic equation for heat transfer is (D). (A) Q = G(I1 – I2) (B) Q = Gr (C) Q = GCPt (D) Q = KAΔtm. 2. Given that the specific heat of water at 20 °C is 4.183 KJ/kg·°C, the amount of heat released when 1 kg of water at 30 °C is cooled to 10 °C is (C) KJ. (A) 4. 183 (B) 41. 83 (C) 83. 66 (D) 167.32 3. The basic modes of heat transfer include (D). (A) Conduction and convection (B) Conduction and radiation (C) Convection and radiation (D) Conduction, convection, and radiation