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Chemistry
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Methane reacts with oxygen at constant pressure
CH4 (g) + 2O2 (g) → 2H2O (l) + CO2 (g) DH = -890 kJ / mol
Is this an exothermic or endothermic reaction? (basically answer)
Will change in inner energy, YOU be greater or smaller than DH? (basically answer)
How much heat is transferred when 4.50 g of methane reacts?
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- Q 2 pleasearrow_forwardWhat is the heat of a reaction, in joules, with a total reaction mixture volume of 68.8 mL if the reaction causes a temperature change of 5.1 °C in a calorimeter? Assume that the reaction mixture has a density of 1.00 g/mL and a specific heat of 4.184 J/g-°C. The calorimeter has a heat capacity of 10.0 J/°C. Type answer: < ВАСК Question 3 of 6 NEXT étv w g88 FA ese FI F2 F6 F7 FB F10 2$ 4. @ 23 & 2 3 5 7 9 W E R T Y Parrow_forwardi attached the screenshot please check and solve it. MMmmarrow_forward
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- References Use the References to access important values if needed for this question. When N2(g) react with O2(g) to form N,0(g) according to the following equation, energy is absorbed from the surroundings. 2N2(g) + O2(g) 2N2O(g) Is this reaction endothermic or exothermic? What is the sign of AH for the reaction? Would the energy of the surroundings increase or decrease as a result of this process? Submit Answer alpy and Representing Energy Change: This is group attempt 2 of 5 Regenerate C Autosaved at 4:41 PM hparrow_forwardCalculate the energy of combustion per gram of Olive Oil (kJ/g) if 29.9 mL of water is placed in the test tube and the temperature changes from 22.9 °C to 44.6 °C. The initial mass of the spirit burner is 204.60 g and the final mass is 204.51g. State your answer with correct significant digits. Notes: Include a negative sign if the reaction is exothermic Do not include units in your answer.arrow_forwardQuestion 23 pleasearrow_forward
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