subject
Chemistry, 16.04.2020 00:23 lerasteidl

Measurements show that the enthalpy of a mixture of gaseous reactants increases by 243.kJ during a certain chemical reaction, which is carried out at a constant pressure. Furthermore, by carefully monitoring the volume change it is determined that −174.kJ of work is done on the mixture during the reaction. Calculate the change of energy of the gas mixture during the reaction in kJ.

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 22.06.2019 04:30
Why is nh3 classified as a polar molecule
Answers: 2
question
Chemistry, 22.06.2019 05:50
Astudent made a graph plotting the progress of a reaction over time. the student forgot to label the y-axis of the graph. a graph is shown with two graph lines. one graph line starts at a higher position on the y axis and slopes downwards towards the right. the other graph line starts at a lower position on the y axis and slopes upwards towards the right. the two graph lines stop short of intersecting each other and continue as separate lines which gradually become straight and parallel to the x axis. a vertical line is shown at a point where the two graph lines finally became parallel to the x axis. this vertical line is labeled equilibrium. the title on the x axis is time and an arrow pointing towards the right is shown above time. the title on the y axis is left blank. what best explains the label that the student should use on the y-axis? amount, because as the amount of product decreases, the amount of reactant increases over time. reaction rate, because forward and backward reaction become equal at equilibrium. amount, because the amounts of reactants and products become constant after equilibrium is reached. reaction rate, as the rate of forward reaction increases and rate of backward reaction decreases over time.
Answers: 3
question
Chemistry, 22.06.2019 20:30
What is a difference between a mixture of elements and a mixture of compounds
Answers: 1
question
Chemistry, 22.06.2019 22:30
Akno3 solution containing 51 g of kno3 per 100.0 g of water is cooled from 40 ∘c to 0 ∘c. what will happen during cooling?
Answers: 3
You know the right answer?
Measurements show that the enthalpy of a mixture of gaseous reactants increases by 243.kJ during a c...
Questions
question
Mathematics, 26.01.2022 03:20
question
Mathematics, 26.01.2022 03:20
question
Social Studies, 26.01.2022 03:20