Question

2. In a chemistry experiment, 10 g of urea NH2CONH2 (s) is dissolved in 150 ml of water in a simple calorimeter. A

temperature decrease of 3.7°C is measured. Calculate the molar enthalpy of solution for urea.
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Answer 1

Answer:In a chemistry experiment, 10g of urea, NH2CONH2 (s), is dissolved in 150 mL of water in a simple calorimeter. A temperature decrease of 3.7oC is measured. Calculate the molar enthalpy of solution (∆Hs). ... an ideal gas B if 0.622 g sample of gas B occupies a volume of 300 mL at 35 °C and 1.038 atm.

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