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200 g of water are at 25°C. The water is heated to 75 °C by burning 2 g of ethanol. What is the amount of energy transferred to the water? A 0.418 kJ B 10.4 kJ C 41.8 kJ D 62.7 kJ |
| Answer» NFO : 200 g of water are at 25°C. The water is heated to 75 °C by burning 2 g of ethanol.To find : The amount of energy transferred to the water is ...solution : MASS of water, m = 200g initial temperature, T_i = 25°C final temperature, T_f = 75°C a/c to question, The water is heated to 75°C by burning 2g of ethanol. ⇒heat transferred by Ethanol = mS∆T = 200g × 4.18 j/g/°C × (75°C - 25°C )= 200 × 4.18 × 50 j= 10000 × 4.18 j = 41800 j = 41.8 × 10³ j = 41.8 kJ Therefore the amount of energy transferred by Ethanol to the water is 41.8 kJ.also read similar QUESTIONS : Electron affinity is expressed ina) kJ b) J c) kJ MOL d) kJ mol-1 brainly.in/question/3988615How much heat is required to decompose 25.5 grams of NaHCO3? 2NaHCO3(s) + 129 kJ 2Na2CO3(s) + H2O(g) + CO2(g)129 kJ39.... brainly.in/question/3905544Express latent heat of fusion and latent heat of vaporizations of water in j/g, kj/g and in kj/mol ?I want solution in... brainly.in/question/8849035 | |