What is the Ccal (Heat capacity of the caloritemer based on the follwoing information) qcal-2092J Δ T cold water - 8 Δ T hot waer - 18 qcold 1673 J qhot (-3765.6 J) there were 50g of each type of water used in calorimemter ( dont know if relevant)

What is the change in enthalpy for the reaction: 2B (s) + 3H2(g) → B2H6 (g) given these thermochemical equations? B2H6 (g) + 302 (g) →B2O3 (s) + 3 H₂O (g) AH = -2032 kJ 2B (s) + 3/2 O2 (g) → B2O3 (s) AH = -1272 kJ H2(g) + 1/2 O2 (g) → H2O (g) AH -241.8 kJ -4029 kJ +518.2 kJ +34.6 kJ -3546 kJ

10:23 PM Thu May 25 < G car wallpaper ipad - Goog... = THERMOCHEMISTRY G when will stranger things... Understanding the definitions of heat and work AA Is the reaction exothermic or endothermic? Does the temperature of the water bath go up or down? Does the piston move in or out? A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. (See sketch at right.) From previous experiments, this chemical reaction is known to release 331. kJ of energy. Does the gas mixture do work, or is work done on it? Explanation The temperature of the water bath is monitored, and it is determined from this data that 223. kJ of heat flows out of the system during the reaction. How much work is done on (or by) the gas mixture? Round your answer to 3 significant digits. Check…

The combustion of a sample of isoctane vapor at constant pressure raises the temperature of a calorimeter and its contents by 0.400 °C. The heat capacity of the calorimeter and water combined is 2.48 kJ/°C. How much heat was produced from the combustion? (variations of formula: c=q/mat)