Ammonia reacts with oxygen according to the reaction 4NH3(g) + 5O2(g) + 4NO(g) + 6H2O(g), AHrx = -906 kJ
Calculate the heat associated with the complete reaction of 155 g of NH3 .
Express the artswer in kilojoules to three significant figures.
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Part B

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

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