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Heat vs Q

Posted: Sun Feb 10, 2019 10:49 pm
When do you use change of heat and when do you use Q?

Re: Heat vs Q

Posted: Sun Feb 10, 2019 10:51 pm
I thought q was the change in heat? Since we can only measure the flow?

Re: Heat vs Q

Posted: Sun Feb 10, 2019 10:52 pm
If it asked for change in enthalpy you would solve for deltaH. If it is asking for heat occurring by the system or on the system solve for q.

Re: Heat vs Q

Posted: Sun Feb 10, 2019 11:13 pm
The reaction quotient, Q, is calculated when you need to determine which direction a non-equilibrium reaction will proceed.

Re: Heat vs Q

Posted: Sun Feb 10, 2019 11:54 pm
Q is the amount of heat transferred to a system. Delta H on the other hand is a thermodynamic potential. It is essentially the measure of potential energy within a system.

Re: Heat vs Q

Posted: Sun Feb 10, 2019 11:59 pm
the change in energy of the system or delta U is equal to q+W. W is energy transferred to the system by work, while q is the energy transferred by heat.