Question

please answr three and four thank you

3. If 50.0 kJ of heat are given off by a chemical reaction in aqueous solution and all the heat is absorbed by the surrounding water, what are the numerical values of: a) 9system b) surroundings 4. If 100.0 g of water undergo a temperature increase of 5.5°C, what is the heat change (9) of the water? a) in joules b) in kilojoules (contin CHEM& 161 F19

Answer 1

3. (a) System releases 50.0 kJ of heat. So, q_system = -50.0 kJ

(b). The surroundings absorb all the heat released. So, q_surroundings = 50.0 kJ

4) Heat change, q=mcat = 100.00* 451843 x 5:5°C 3 2301.21 (a) Heat change, q in goules = [ 2301:25] (b) Heat change, q in kilojules = (23012) kJ = 2.3012 kJ </2.30 kJ