Achemical reaction occurs in a flask with an attached syringe the reaction absorbs 150 j of energy and as 25j of work on the syringe. calculate the change in energy in joules of the system. write the missing numbers in the boxes to complete the equation q+w=

175 J

Explanation:

According to first law of thermodynamics:

=Change in internal energy

Q = heat absorbed or released

W = work done or by the system

W = work done on the system=  {Work done on the system is positive as the final volume is lesser than initial volume}

w = + 25 J

q = + 150 J   {Heat absorbed by the system is positive}

Thus Q+W= +175 J

idk i’m struggling too

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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