
Chemistry
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ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Transcribed Image Text:(b) In a solution calorimeter, what are the signs of AT and AH for an endothermic
reaction?
sign of AT =
sign of AH =
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- Question 6 of 19 Consider a process where AE is -50 J and 10 J of work was done on the system. What is q in J for this process?arrow_forwardThe vaporization of Br2 from the liquid to the gas state requires 7.4 kcal/mol (31.0 kJ/mol). (a) What is the sign of AH for this process? Write a reaction showing heat as a product or reactant.arrow_forward( is the answer is + 46.48 or -46.48 plzz telll ...why + or why - also explainarrow_forward
- If 1.0 mL of 0.4 M HCl was added to 40.0 mL of pure water, what would the resulting ΔpH of the solution bearrow_forward4. Consider the equations for these reactions: % N2 + % O2 → NO NO2 → NO + % 02 AH = +90.4 kJ AH = +56.5 All reactants are gaseous. What is the heat of formation (AH;) for NO2 gas?arrow_forwardThe standard molar enthalpy of formation for oxygen gas, ?2(?), is zero. The enthalpy of formation for atomic oxygen, ?(?), is +250??/???. Why is there a difference in these values?arrow_forward
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